High-strength carbon fibre forms the main shaft, creating a slim 13cm needle without unnecessary weight.
KnitPro Karbonz Box of Joy 13cm Interchangeable Needle Set – 8 Sizes
Eight carbon-fibre sizes, four cables and presentation worthy of the tools inside
The KnitPro Karbonz Box of Joy pairs lightweight carbon-fibre shafts with finely pointed brass ends, covering eight useful diameters from 3.50–8.00mm. Four swivel cables, essential connection accessories, a silver pouch and a structured black-and-grey box make it both a capable knitting system and a memorable gift.
- 8 pairs of 13cm Karbonz tips cover 3.50–8.00mm.
- Carbon-fibre shafts with pointed brass ends combine low weight with precise stitch entry.
- Four 360° swivel cables create 60cm, 80cm × 2 and 100cm finished circulars.
- Silver accessory pouch and presentation box give every component a considered place.
Box of Joy · Article 41630
More than attractive packaging: a genuinely useful Karbonz range
Box of Joy spans common mid-range garment sizes and reaches into larger 7.00mm and 8.00mm knitting. The carbon-fibre body keeps each full-length tip light, while the polished brass point supports accurate entry into loops, decreases, cables and texture.
Finely shaped metal ends support clean stitch pickup and a smooth transition onto the carbon-fibre body.
Tips are displayed in the structured box, while cables and connection accessories stay together in the silver pouch.



Everything included with KnitPro article 41630
Carbon-fibre shafts with pointed brass ends and clearly marked metric sizes.
Black nylon-coated stainless-steel cables with 360° swivel connections and silver-coloured screw fittings.
- 1 × 60cm / 24in finished circular
- 2 × 80cm / 32in finished circulars
- 1 × 100cm / 40in finished circular
- 8 end caps
- 4 cable keys
- 1 set of cable connectors
Hold four projects on their cables, secure the screw-fit joins and connect compatible cables when extra working room is useful.
- 1 silver accessory pouch
- 1 black-and-grey presentation box
The box displays all eight tip pairs, while the pouch holds the cables and connection pieces together.
The cable measurement includes the attached tips
KnitPro states these lengths from one needle point to the other after the 13cm tips are connected. The duplicate 80cm cable is particularly useful for keeping two everyday garment, shawl or flat-knitting configurations ready.
- Choose the finished length recommended by the pattern
- Keep the circular shorter than the project circumference when knitting in the round
- Use a cable key for a secure screw-fit connection
- Choose shorter tips if a 40cm or 50cm circular is required
Two everyday 80cm cables plus compact and roomy options
From detailed garments to relaxed larger-gauge knitting
The 3.50–8.00mm range can suit many sport, DK, worsted, aran and chunky projects when the pattern, yarn and tension agree. Always swatch and choose the diameter that produces the required gauge rather than relying on yarn labels alone.
Sweaters & cardigans
The size range covers many garment gauges, while the 13cm tips provide a full handhold.
Shawls & wraps
Move from 60cm to 80cm or 100cm as construction and stitch count require.
Cables & texture
Pointed brass ends support accurate entry for ribs, crossings and textured stitches.
Larger-gauge knits
The included 7.00mm and 8.00mm pairs extend the set beyond the Midi range.
Scarves & cowls
Work flat or select a circular length that stays shorter than the project circumference.
Blanket sections
The 100cm cable or connected compatible cables provide room as stitch counts grow.
Magic loop
Use a suitable 80cm or 100cm flexible cable for small circumferences worked by magic loop.
Multiple projects
Four cables and eight end caps allow several works in progress to remain safely on cables.
Is Box of Joy right for you?
A strong choice if you…
- Want a gift-ready Karbonz presentation
- Prefer lightweight carbon-fibre shafts and polished metal points
- Regularly use 3.50–8.00mm needles
- Want four cables across 60–100cm lengths
- Work on mid-to-larger-gauge garments and accessories
- Want 7.00mm and 8.00mm included
Consider another set if you…
- Need 3.00mm, 3.25mm or 3.75mm included
- Mostly knit very fine yarns or socks
- Need 40cm or 50cm compact circulars
- Prefer polished birchwood or all-stainless-steel tips
- Want markers, finishing tools and a gauge included
- Do not need the presentation box
Box of Joy or Karbonz Midi?
| Feature | Box of Joy 41630 | Karbonz Midi 41631 |
|---|---|---|
| Best reason to choose | Eight sizes through 8.00mm in a gift-ready box | Seven popular sizes beginning at 3.00mm in a compact fabric case |
| Tip material | Carbon fibre with pointed brass ends | Carbon fibre with pointed brass ends |
| Tip sizes | 8 pairs: 3.50, 4.00, 4.50, 5.00, 5.50, 6.00, 7.00 and 8.00mm | 7 pairs: 3.00, 3.50, 4.00, 4.50, 5.00, 5.50 and 6.00mm |
| Key size difference | Adds 7.00mm and 8.00mm; does not include 3.00mm | Includes 3.00mm; stops at 6.00mm |
| Included circular lengths | 60cm, 80cm × 2 and 100cm | 60cm, 80cm × 2 and 100cm |
| Connection accessories | 8 caps, 4 keys and cable connectors | 8 caps, 4 keys and cable connectors |
| Presentation | Silver accessory pouch and black-and-grey presentation box | Grey fabric case |
How to assemble and protect the system
Select the size
Begin with the pattern recommendation, knit a tension swatch and change diameter when your gauge requires it.
Choose the cable
Select the finished 60cm, 80cm or 100cm circular length to suit construction and stitch count.
Tighten with the key
Screw in both tips, place a key through each cable fitting and give the tip a firm final hand-tighten.
Return every piece
Keep clean, dry tips in the box and return cables, keys, caps and connectors to the silver pouch.
KnitPro Karbonz Box of Joy 41630 specifications
| Brand | KnitPro |
|---|---|
| Collection | Karbonz |
| Set | Box of Joy Interchangeable Needle Set |
| Article number / SKU | 41630 |
| Tip type | Standard / normal interchangeable circular needle tips |
| Tip length | 13cm / 5in |
| Tip material | Carbon-fibre shafts with pointed brass ends and metal cable connectors |
| Tip sizes | 8 pairs: 3.50, 4.00, 4.50, 5.00, 5.50, 6.00, 7.00 and 8.00mm |
| Approximate US sizes | US 4, 6, 7, 8, 9, 10, 10.75 and 11 |
| Cables | 4 black nylon-coated stainless-steel cables with 360° swivel connections |
| Finished circular lengths | 60cm / 24in, 80cm / 32in × 2 and 100cm / 40in, measured point to point after assembly |
| Connection accessories | 8 end caps, 4 cable keys and 1 set of cable connectors |
| Accessory storage | Silver zip pouch |
| Presentation | Black-and-grey Karbonz box with shaped tip insert |
KnitPro Karbonz Box of Joy FAQs
What is the KnitPro article number?
Box of Joy is KnitPro article 41630.
How many needle tips are included?
The set contains eight matching pairs—16 individual 13cm tips in total—in 3.50, 4.00, 4.50, 5.00, 5.50, 6.00, 7.00 and 8.00mm.
Does Box of Joy include 3.00mm tips?
No. Box of Joy begins at 3.50mm. Choose the Karbonz Midi set if 3.00mm is important, or add compatible individual KnitPro tips separately.
What are Karbonz tips made from?
The main shaft is carbon fibre, with a pointed brass end for stitch entry and a metal connector where the cable attaches.
What cable lengths are included?
There is one 60cm cable, two 80cm cables and one 100cm cable. These measurements describe the approximate finished point-to-point circular length after the 13cm tips are attached.
Why are two 80cm cables included?
80cm is a versatile length for garments, shawls, flat knitting and some magic-loop work. A second cable lets another common setup or work in progress remain assembled.
Can these tips make a 40cm circular?
No. Two 13cm tips do not leave enough flexible cable for a comfortable 40cm loop. Choose compatible 10cm short tips designed for compact circular lengths.
Can I knit flat with this set?
Yes. Turn the work at the end of every row as you would with straight needles, using the cable to carry the stitches and project weight.
Can I knit socks with Box of Joy?
Only when an included diameter suits the pattern and you use a method such as magic loop. The set begins at 3.50mm and its 13cm tips do not form a tiny sock-sized circular by themselves.
What do the eight end caps do?
They close the four cables after the tips are removed, allowing live stitches to remain safely on each cable while the tips are used elsewhere.
What are the cable connectors for?
They join compatible KnitPro cables when extra working length is needed. Tighten both joins with a key and guide stitches carefully over the connected section.
Are markers, scissors or a needle gauge included?
No. The accessory collection consists of end caps, cable keys, cable connectors and the silver pouch. The presentation box and all four cables are also included.
How should I care for the set?
Keep tips and connectors clean and dry, avoid bending or forcing the joins, and return each component to the box or pouch after use. Replace a tip or cable if it becomes damaged, rough or loose.
Give eight useful carbon-fibre sizes—or make your own knitting collection feel complete
Box of Joy brings together precise carbon-fibre-and-brass tips, four versatile cable configurations and elegant presentation for projects from detailed garments to relaxed larger-gauge knitting.
Review Everything Included