Sue Wilson Kinetics Collection2 high quality steel dies - largest die size: 7.4 x 3.0 cm (2.91 x 1.18 inches)Co-ordinates with dies CED22001 Arched Window/Door and CED22003 3D Window BoxThese dies work with most tabletop die cutting machines, such as the Cuttlebug, Big Shot, Grand Calibur, eBosser etc