This acrylic sewing quilting ruler is a multifunctional tool perfect for DIY projects. It features a 90-degree double strip design, allowing you to cut three perfect triangles at once. The ruler has a keyhole that enables easy rotary cutter use without damaging the ruler. It can be used to cut 1-1/2 and 2-1/2 inch strips and holds fabric securely in place while cutting, eliminating miss-cuts. Available in various sizes, this transparent ruler is made of high-quality acrylic and is lightweight for easy handling. Enhance your sewing and quilting projects with this versatile and precise ruler. Features: 1. 6 inch, 8 inch, 10 inch, 18 inch optional, meet your different demands. 2. Turn round the ruler to cut three 90 degree triangles. Multiple layers can be cut at one time. 3. The key hole in the ruler enable the rotary cutter to cut past the strip without damaging the ruler. 4. Use the straight side of this double ruler to cut 1-1/2 and 2-1/2 inch strips, or use the pre-cuts that are on the market. 5. Slides easily over the fabric until pressure is applied, holds the fabric in place while cutting, eliminating miss-cuts. Specification: Material: Acrylic Color: Transparent Size: 6 inch, 8 inch, 10 inch, 18 inch Weight: 44g, 63g, 83g, 190g Package Included: 1 x 90 Degree Double Strip Ruler