Seeknit Koshitsu Interchangeable Circular Needle Tips Set — 12.5cm/5in

Japanese precision. Hardened bamboo. One tip length, two clearly defined sets.

The Seeknit Koshitsu interchangeable needle system with 12.5cm/5in tips is designed for knitters who prefer a longer, more traditional needle length with maximum control and stability.
This product is offered in two configurations — S Set and M Set.
Material, construction, and performance are identical. The only difference is the range of needle sizes included.

All components are manufactured in Japan by Kinki Amibari Co. using Seeknit’s proprietary Koshitsu-treated bamboo.

Needle tip length
All needle tips in both sets measure 12.5cm/5in.
This length provides a classic straight-needle feel, excellent leverage, and added hand support, making it especially comfortable for garment knitting and longer sessions.

Material: Koshitsu-treated bamboo
The needle tips are made from Japanese moso bamboo enhanced through a specialized heat and pressure process. This treatment:

• increases density and durability;

• improves dimensional stability;

• creates a smoother, more refined surface;

• delivers precise stitch control while remaining warm and comfortable in the hands.

Compared to standard bamboo, Koshitsu bamboo feels firmer, more stable, and more controlled.

S Set — Contents (Small Sizes)

• Needle tip length: 12.5cm/5in

• Screw size: M1.8

• Needle tips included:

  • 2.50mm (US1.5)

  • 2.75mm (US2)

  • 3.00mm (US2.5)

  • 3.25mm (US3)

• Cords included:

  • 35cm/14in

  • 55cm/22in

  • 75cm/30in

• Accessories:

  • cord joint ×1

  • stoppers ×2

M Set — Contents (Medium Sizes)

• Needle tip length: 12.5cm/5in

• Screw size: M2

• Needle tips included:

  • 3.50mm (US4)

  • 4.00mm (US6)

  • 4.50mm (US7)

  • 5.00mm (US8)

• Cords included:

  • 35cm/14in

  • 55cm/22in

  • 75cm/30in

• Accessories:

  • cord joint ×1

  • stoppers ×2

Smooth joins and rotating cables
The transition between bamboo tips and metal connectors is completely seamless. The transparent cables are flexible, memory-free, and feature a rotating joint that prevents twisting during knitting.

Who this system is for
This set is ideal for knitters who prefer longer needle tips, enjoy a traditional hand position, and want a refined interchangeable system built for precision and durability.
The S Set covers fine-gauge work, while the M Set offers a reliable everyday size range — both built on the same premium materials and engineering.

Seeknit Koshitsu is a system where length, material, and millimeter all have purpose.

Please note:
Due to the nature of knitting tools, all needle sales are final. Returns or exchanges are not accepted.