This vibrant rainbow coloured interchangeable circular needle set is made of a strong, polished, smooth laminated birch wood. Yarn slides freely along the needle without catching, but has enough grip to easily manage slippery yarns. This 12cm (43⁄4″) set includes one pair of each of 9 needle tip sizes; 3.5mm/US 4, 3.75mm/US 5, 4.0mm/US 6, 4.5mm/US 7, 5.0mm/US 8, 5.5mm/US 9, 6.0mm/US 10, 6.5mm/US 10.5, 8.0mm/US 11 as well as 2 - 60cm/14″ cables, 2 - 80cm/32″ cables, 1 vinyl needle case, 8 end caps and 2 cable keys.