If you knit often and you like to knit, you have a large assortment of knitting needles in different sizes and thicknesses. And how many times do you find knitting needles by storing and sorting the wool? The knitting needle gauge is a practical accessory to determine the thickness of the knitting needle. The handy robust white plastic card has 19 holes with the standard diameters of all commercial knitting needles between 2 mm and 10 mm . Thus, you can precisely determine the thickness of each knitting needle.Tail: 67 x 92 mm.Matière: plastic.