This Crochet Hook set in aluminum with plastic handle is available in a pouch of 5 pieces with sizes ranging from 2.75mm, 3.00mm,3.0mm, 3.25mm ,3.75and 4.0mm and with a common length of 14cm.These crochet hooks are used with wool or synthetic yarns to crochet garments/ rugs. The handle attached to the crochet hook allows for firmer grip for constant vigorous use.