This Premium Crease Pad is recommended when using crease-rule Bigz Plus dies in the Big Shot Plus Machine. Constructed of high-quality polyurethane plastic, this Crease Pads helps create subtle fold lines for easy to assemble cards, envelopes, bags, boxes and pockets. Simply sandwich the die and material to be cut between one Crease Pad and one Cutting Pad and roll through the machine. This Crease Pad measures 8 7/8" x 15" x 1/8" and lasts for thousands of cuts. All Sizzix Crease Pads are meant to be used on both sides. When both sides of the Crease Pad are worn out, it is time for a replacement Crease Pad. This product requires use of the Big Shot Plus Cutting Pad (sold separately).