Counted crochet tool set includes 12 pieces of replaceable aluminum head hooks, hook sizes from 2.0mm - 8.0mm, crochet hooks are available in sizes, equipped with a wrench for easy use and will not cause the hooks to fall off, and easy to remove. The metal head is durable and very strong for long-term use. Crochet set with LED light and 3 push button switches. Press the '' button to turn on the LED light, press the 'S' button for each to increase the number of stitches, and hold the S button to decrease the number of stitches. Repeat the steps above to the \"R\" button to change the number of rows. Quantity display makes knitting easier. The crochet set has built-in lithium battery, which is rechargeable and reusable. The battery lasts for 7-9 hours after being fully charged in 15 minutes, and the crochet hook weighs only 0.7 ounces (about 0.7 liters) and is ergonomic. Just click the light button on the handle, the crochet hook will light up, you can knit in the dark, it can protect your eyes well. The crochet hooks use metal crochet hooks, which are reusable, more durable than plastic crochet hooks, have a longer service life and do not damage the wool, and you will get 12 replaceable crochet hooks. Crochet Hook Specifications: Crochet Hook Size: 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm, 7.0mm, 8.0mm. Material: Metal Color as shown Package Contents: 1 x Crochet Hook 1 x Wrench 1 x USB Charging Cable 1 x Case 12 x Replaceable Hook The above package content only, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.