Made of Bamboo, the Lykke Grove needles are very smooth and light. Comes in a beautiful beige jute canvas case. This Interchangeable Set includes 9 pairs of 3.5" Needle Tips including Sizes US 3, 4, 5, 6, 7, 8, 9, 10 and 10.5, Also includes 2 cords for 16" length, 1 cord for 20" length, and 1 cord for 24" length, 2 connectors, 4 keys, and 8 stoppers.