Sizzix-Stamper's Secret Weapon: Mat & Paper Piercer. Stamp and pierce on one mat! The self-healing mat is made of the same type of foam as used between the rubber image and the wood block of a mounted stamp. Use the smooth side as a stamping surface to create a cushion when stamping with clear stamps; allowing for clean and detailed images. Use the opposite side for paper piercing and more. This package contains one 10-1/2x12x1/2 inch mat and one paper piercer. Imported.