This plastic standard size knitting gauge enables you to tell the size of your needles by simply inserting them into the holes. Includes a ruler in both centimetres and inches to help with sample measuring. Quickly and easily discern the size of your needles by inserting them into the holes in this sewing gauge. This plastic standard size sewing gauge is a great haberdashery accessory and is designed with centimetre and inch measurements along the sides for easy sample measuring.