This package includes three Replacement BetterPress Shims that are part of the BetterPress Collection from Spellbinders. These shims are, also known as cutting mats, designed to be used with the BetterPress LetterPress System from Spellbinders (sold separately). These thin plastic shims allow you to increase or decrease the pressure in your BetterPress System. These shims measure 0.0006" x 5.81" x 8.88".
