This pair of Cutting Pads from Sizzix is specially designed for use in the Big Shot Pro machine. Constructed of high-quality polycarbonate plastic, these see-through Cutting Pads allow for easy die-cutting of Bigz Pro 25" dies in the Big Shot Pro machine (sold separately). Simply sandwich the die and material to be cut between the Cutting Pads and roll through the machine. The special size of these Cutting Pads helps to create the perfect Sizzix sandwich when die-cutting quick quilting strips and shapes. Each Cutting Pad measures 26" x 12 1/4" x 1/8" and lasts for thousands of cuts. All Sizzix Cutting Pads are meant to be used on both sides. When both sides of the Cutting Pads are worn out, it is time for replacement Cutting Pads.