Crochet Hooks LiteCrochet in dimly lit spaces. Great for crocheting with dark colored yarn. CROCHET ANYWHERE Even in the dark!!! Each Crochet Hook has its own battery installed. 8 Crochet Lite hooks. Crochet size: 2. 5 mm 0. 09 inch, 3. 0 mm 0. 11 inch; 3. 5 mm 0. 13 inch; 4. 0 mm 0. 15 inch; 4. 5 mm 0. 17 inch; 5 mm 0. 19 inch; 5. 5 mm 0. 21 inch; 6 mm 0. 23 inch; Package included: 8 crochet hooks