addi XXL Crochet Hooks - Set of 3 - For Working with Thick Yarns 1. Length 6 in. (15 cm); Size US O (12.00 mm) 2. Length 6 in. (15 cm); Size US P (15.00 mm) 3. Length 8.75 in. (22 cm); Size US S (20.00 mm) Materials: Plastic Made in Germany