High quality polycarbonate plastic gives this cutting pad a see-through quality, making die-cutting quick and easy. Simply sandwich the die and material to be cut between a pair of cutting pads and roll through the machine.All Sizzix Cutting Pads are meant to be used on both sides. When both sides of the cutting pad are worn out, it is time for a replacement cutting pad. Use this pair of 6 1/4" x 14 3/4" Cutting Pads to easily accommodate the extra-large format of Bigz XL, Mover & Shapers, and original dies. 2 per package.