This Premium Crease Pad was specially designed for die-cutting with Sizzix steel-rule dies containing crease rule (Bigz, Movers & Shapers and Originals) in the BIGkick, Big Shot and Vagabond machines. Constructed of high-quality polyurethane plastic, this Crease Pad 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. Two Mylar Shims are included to compensate for minute variations in paper thicknesses and wear on the Cutting or Crease Pad. If the steel rule of the die does not cut or crease the shape completely, then use one to two Mylar Shims to die-cut the crease-rule shape.