Item Type: Interchangeable Circular Knitting Needle Set Material: Stainless Steel, Cloth, Plastic Specifications: One Set Product Use: Household, Weaving, Etc. Scope of Application: Most Age Eligible Persons Rings Needle Size: (Approx. 2.75mm / 0.1in, Approx. 3.25mm / 0.13in, Approx. 3.5mm / 0.14in, Approx. 3.75mm / 0.15in, Approx. 4.0mm / 0.16in, Approx. 4.5mm / 0.18in, Approx. 5.0mm /0.20in)x2 1、Lock Design: Double ended crochet and ruler storage area with intimate small tool bag design, stick type lock design, convenient and not easy to break, more secure storage, foldable, compact and easy to carry. 2、Multi Specification Rings Needles: 7 sets of detachable rings needles meet your more knitting needs, and can knit various types of works to enrich life. 3、Double Ended Crochet Design: Humanized design, double ended crochet can have one more choice, fashionable colors, can be pleasing to the eye. 4、Cute Appearance: The color is good looking, the appearance is also cute, and there are many kinds of matching accessories. It is a good helper for knitting sweaters and scarves. A must have set of high end needles! 5、Perfect Gift: Knitting needles are thoughtful gifts for moms, aunts, sisters, daughters, friends, grandmothers and all crochet lovers.