Estone&reg; Plastic Handle Aluminum Crochet Knit Hook Knitting Needles DIY 8 Sizes 2.5-6.0mm This hook set employs durable aluminum that's polished for extra smoothness The ergonomic shape grip that developed independently by Tulip is very comfortable to hold Ideal for all crochet projects Material: ABS Handle & Aluminum Hook Size: This set includes the following 8 sizes: 2.5mm/0.10inch3.0mm/0.12inch3.5mm/0.14inch4.0mm/0.16inch, 4.5mm/0.18inch5.0mm/0.20inch5.5mm/0.22inch6.0mm/0.24inch