This range of strip rulers is designed for quick and easy cutting The top of the Triple-cornered is cut off and a half-square Triple-cornered will be formed. Put the two pieces of fabric and cut at the same time you can cut Triple-cornereds. Then turn the ruler around and line up all the Triple-cornereds along your strip of fabric, cutting out multiple Triple-cornereds at a time. The holes cut out of the ruler allow the cutter to cut the strip without damaging the ruler. Size:10inch Name: 45° Strip Ruler Color as shown Material: Acrylic Package Contents: 1 x 45° Strip Ruler Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.