These ChiaoGoo sock needles are made of eco-friendly, lightweight and very durable moso bamboo. The hand-polished tips are evenly tapered. The needle size is clearly visible with laser burned into each knitting needle. These natural colored knitting needles are 15cm long and are supplied as sets of 6 needles for sizes 2mm to 2.75mm. The needles from size 3mm and up are supplied as a set of 5 needles.