The pre-drilled plastic plate is used to determine the size of the swaths by test: if the crochet hook or knitting needle enters the hole and there is no space between the gauge and the needle, the needle is the size of the number written next to the hole. The plate has 18 holes between 2 and 9mm, with sizes expressed in mm, in US and GWR systems. The gauge can also be used as a ruler, as it is graduated on one side in cm and on the other in inches.Size: 4x16cmMaterial: plastic
