This 12 Pcs Assorted Colors Crochet Hooks with Dot Pattern Case - Magenta is made of high quality aluminum alloy. The crochet hooks with diverse size are specialized for weaving and knitting, they are portable and easy to use. With this all-in-one crochet kit, all of your hooks are neatly stored inside a convenient carrying case and are accessible while working on a project. Compact design allows you to store the crochet kit anywhere.