This Westcott Self-Healing Cutting Mat is ideal for any project involving sharp tools. The flexible yet durable construction is self-healing for extended performance and protects any work surface without dulling your hobby knife or rotary cutter. Includes measuring grids and scales. Protects your work space and your blade life all while creating fast, straight and easy cuts! Compatible with Westcott cutting blades, sold separately (scissors, rotary cutters, hobby knives). Measures 12" x 12". Self-healing Cutting Mat