1. This interchangeable needle set with extremely high knitting versatility allows you to easily create dozens of different needle combinations. 2. You can knit all types of items including socks, sweaters, hats and more. 3. Flexible and beautiful PU bag shell, which can neatly store all the included needles and accessories, simplifying your space. 4. Wonderful tool for knitting housewives, all crochet hooks and sewing tools are protected and classified. 5. Made of high quality materials, strong and durable, long service life, no deformation. Specification: Item Type: Crochet Hooks Set Needle Size: Approx. 2.75 mm / 0.11 inch 3.25 mm / 0.13 inch 3.5 mm / 0.14 inch 3.75 mm / 0.15 inch 4.0 mm / 0.16 inch 4.5 mm / 0.18 inch 5.0 mm / 0.2 inch 5.5 mm / 0.22 inch 6.0 mm / 0.24 inch 7.0 mm / 0.28 inch 8.0 mm / 0.31 inch 9 .0 mm / 0.35 inch 10.0 mm / 0.39 inch 4 Length of circulating steel cable: approx. 32 cm / 12.6 inch 38 cm / 15 inch 42.5 cm / 16.7 inch 55 cm / 21.7 inch (can be disassembled and assembled by yourself) Package list: 26 x 4 x sweater stitch circulating steel wire 4 x positioning buttons 1 x tool sticker 4 x connection tool 1 polyurethane bag. Note: Please note that the sweater stitch color of this product will be sent randomly, please make sure you do not mind before ordering.