These Kinki Amibari interchangeable circular needle tips are made of bamboo. The lightweight needles are strong and solid yet flexible to a certain extent. The material provides a smooth surface and feels comfortable in the hand. In addition, bamboo is a natural material with a lower environmental impact than other materials. The cables are made of nylon and ensure their flexibility and durability combined with the needle tips for extra knitting comfort. The needle tips simply connect to the cable and the rotating connection prevents the cable from twisting. This set of Kinki Amibari Shirotake interchangeable circular knitting needles contains 12 pairs of needle tips in the following needle sizes: 2.25 – 2.75 – 3.00 – 3.25 mm (each 10 cm long) and 3.75 – 4.00 – 4.50 – 5.5.5.5.5. ====== .00 - 7.00 - 8.00 mm (each 12.5 cm long). There are 8 cables with different screw sizes in the lengths 20, 25, 30 (M1.8) 32, 54 (M2) and 35, 54, 75 cm (M4) and 3 cable connectors. Comes in standard size and in red colour.