Classic Stick Rotary Cutter features a rolling 45 mm blade that cuts multiple layers and holds fabric flat for accurate, straight cuts without jagged edges. Extra-large 18-Inch x 24-Inch Cutting Mat features an easy-to-read measuring grid and a self-healing, double-sided surface for lasting value. 6-Inch x 24-Inch clear Acrylic Ruler lets you see where you’re cutting and includes highlighted seam allowances for strip cutting and a grid for simplified shape cutting. Store mat flat away from sunlight, heat and cold. Clean mat with warm water and mild soap.