BQuilting Starter Kit: Rotary Cutter and Cutting Mat Combo from Quilting Bee (RCCMCC) ReviewbP PP Quilting Starter Kit: Rotary Cutter and Cutting Mat Combo from Quilting Bee (RCCMCC) PQUALITY CUTTING MAT. One side is green with yellow grid lines and the other side is blue with white grid lines.PSELF-HEALING & LONG-LASTING. Automatically reseals surface cuts and is designed to last. This mat is a full 3mm thick and was designed to perform well for many projects to come.PROTARY CUTTER: Ideal for cutting multiple layers of fabric, paper, leather, felt and vinyl.PSAFE, QUICK-GRIP BLADE RELEASE. Just grab the handle and the blade will extend for easy cutting. Then release the grip and the blade will automatically retract for safety.PERGONOMIC COMFORT. Designed for hours of productive work without getting hand and wrist fatigue.