Waffle Flower Die Gym Rat - Approximate sizes: - gym (hamster house): 3-5/8 x 3 inches - hamster wheel: 1-1/2 x 1-5/8 inch - treadmill: 1-1/8 x 3/4 inch Need a wire cutter to break off the connection tabs. Can be used in all leading desktop roller diecut machines.