Circular Knitting Needles Set made from Bamboo Wood are light weight for comfort, smoothness, and longevity. The bamboo is natural material and no chemical smell. They are smoother and lighter which is great for those that suffer with joint pain as they require less tension and come with a handy thumb rest. Full Size & Happy Weave: This set of knitting needles come in pairs and come with 18 different sizes with diameter permanently marked on needles for ease of selection, the sizes from 2 mm to 10 mm. There is no need to handle with no switching around of cords or worry that the cord might come undone.