12 Sizes interchangeable aluminum heads: the crochet hooks come with 12 sizes, namely 2.25 mm, 2.75 mm, 3.25 mm, 3.75 mm, 4.25 mm, 4.75 mm, 5.25 mm, 5.75 mm, 6.25 mm, 6.75 mm, 7.25 mm, 7.75 mm, and the aluminum heads are durable and sturdy to use for a long timeComfortable silicone handles: this crochet hook set contains 3 silicone grip handles, which are soft to touch, and you can enjoy happy crocheting time with your friends or family members togetherStorage case: we also provide you a storage case, to help you store the crochet hooks easily, and you can carry them anywhere you want, also wont take up much of your spacePractical gifts: the interchangeable crochet hook set is perfect for beginners, experienced people or DIY lovers, simple to operate, just prepare this set for your parents, relatives, friends, colleagues, lover and others as nice giftsFunctional and useful: our crochet hooks are made of quality aluminum heads, the handles are made of silicone material, not easy to break or deform, you can use them at ease, the different sizes of heads allow you to change according to your preferenceColour:multicolorMaterial:aluminumSize:21.79 x 15.80 x 4.29 cmPackage Contents:3 x Silicone handles12 x Interchangeable aluminum crochet hooks1 x Wrench1 x Storage caseOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.