Fans of big knitting and crochet projects will love this giant 20.00mm birch wood crochet hook, from premium supplier KnitPro. Its smooth finish allows for easy, effortless movement of yarn. All hooks come with grooves to avoid stitch slippage. It's made of lightweight, strong natural birch wood. Warm to touch and gentle in the hand, it's an ideal hook for everyone. It's approximately 20cm in length.