You can this useful knitting tool set to your family, friends and loved ones. This versatile and useful crochet set can reduce stress on your fingers and wrist. 9x Crochet Set + Tool Kit. Needle Size:size: 9 size (2.0mm 2.5mm 3.0 mm 3.5mm 4.0mm 4.5mm 5.0mm 5.5mm 6.0mm).