1. material and easy to store: Made from highquality 3 mm thick acrylic, these quilt rulers are sturdy and durable for longterm use. Designed with a hole for hanging, keeping your workbench clean. 2. Precise CuttingVivid, accurate markings and grid lines ensure precise cutting. The square quilt rulers are designed with a 30°45°60° angle system to create various patterns: square/triangle/parallelogram/trapezoid/trapezium. Please remove the film on the quilt ruler for the quilting experience. 3. Easy to read and use: The quilt rulers are made of highclarity acrylic material, making the fabric under the rulers easy to see. The dualcolor numbering and markings are easy to read and align, whether you are lefthanded or righthanded, for precise cutting. 4. Useful sewing and quilting accessory set: Includes square quilt rulers in sizes: 31.8 x 31.8 cm, 24.1 x 24.1 cm, 15.2 x 15.2 cm, 11.4 x 11.4 cm, 30 x 5 cm rectangular ruler. The nonslip rings keep the quilt ruler and templates in place for cutting accuracy. Helps you move rulers easily and quickly and keep them in the exact position.