Features:With this amazing LED Crochet Hook Set, you can crochet effortlessly and see clearly with even the darkest yarn. The needles are smooth, suitable for heavy or thin line. The handle is made of wholly new material,it is very safe and gentle to your hands. This ergonomic soft crochet hook makes you crochet for hours without fatigue, feeling pain or cramping on hands or thumbs. 9 different sizes of needle, it is satisfy with all your needs. You can use this tool set knit the product as you like. Specification:Material: PlasticWeight: Approx.176g/6.2ozColor: White/Black (Optional)Package: PVCQuantity: 9 PcsSize: Approx.15.5 * 1.8 * 0.8cm / 6.1 * 0.7 * 0.3in9 sizes: 2.5mm/ 3mm/ 3.5mm/ 4mm/ 4.5mm/ 5mm/ 5.5mm/ 6mm/ 6.5mmPackage List:9 * LED Crochet HooksNote:Please allow 1-2 mm error due to manual measurement.There are many sizes of crochet hook, this one is ordinary and suitable for most knitting yarn. Please choose the hooks according to your yarn size.