The needle guage is made of durable flexible plastic material. The knitting needle gauge tool is made of durable plastic. The knitting needle guage is a great help in checking guage. This needle gauge knitting is what you need to calibrates needle hook size to yarn size is printed on it. The knit needle gauge can tell you what gauge hook or needle you have. This needles sizer is useful for knitters or crocheters. The needle gauge ruler is made of material soft, prone to breaking. This needle gauge tool is essential tool for knitting or crocheting. This needles size gauge is handy and necessary addition to your knitting notions. This needle sizer has nice compact size. The knitting needles gauge ruler is tool for artists, designers, architects, engineers, students and so on; suitable for classroom, school, office, home, etc. The needles gauge ruler is light, convenient, and so useful for non-imprinted needles! This needle gauge can be used as a sweater pin or a loop pin, and it can also be used as an ordinary ruler. This knitting needles gauge tool calibers for 19 sizes with inch, cm, mm. This needle gauge measurement tool is easy to use and store.