Features:The needles are smooth, suitable for heavy or thin line.The handle is made of TPR silica gel,it is very safe and gentle to your hands.Complete specification,9 different sizes of needles to satisfy all your needs.This ergonomic soft crochet hook makes you crochet for hours without fatigue, feeling pain or cramping on hands or thumbs.You can use this tool set knit the product as you like.Specification:Material: Aluminum and PlasticColor: 9 ColorsQuantity: 9 PcsWeight: Approx.168g-240g or 5.9oz-8.5ozSize: 16.3 x 1 x 0.7cm or 6.4 x 0.4 x 0.3in9 Sizes: 2mm or 0.08in 2.5mm or 0.1inch 3mm or 0.1in 3.5mm or 0.12in 4mm or 0.16in 4.5mm or 0.18in 5mm or 0.2in 5.5mm or 0.22in 6mm or 0.24inPackage List:9 x Hooks1 x PU bagNote: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.