HiyaHiya Double Point 6-inch (15cm) Bamboo Knitting Needles (Set of 5); Size US 13 (9mm) HIBDP6-13 1 x HiyaHiya Double Point 6-inch (15cm) Bamboo Knitting Needles (Set of 5), Size US 13 (9mm) HiyaHiya Bamboo Double Point needles are made with high quality bamboo impregnated with resin This makes HiyaHiya needles the strongest and smoothest bamboo needles available Lifetime Product Warranty: If purchased from an authorized dealer, HiyaHiya guarantees all products against all manufacturing defects; warranty excludes products damaged due to accident, misuse, abuse or negligence