Pony maple needles and crochet hooks are made from sustainable, precious hardwoods. They are highly polished with no added chemicals to meet the demands for a biodegradable product. Hand-painted knobs created using vegetable dyes. Knob diameter: 10mm Groves & Thames MAPLE K/P 35CMX3.50 - Knitting Pins: Single-Ended: Maple: Hand-Painted Knobs: 35cm x 3.50mm - Pony