ART BIN-Magnetic Die Storage Case W/3 Sheets. This clever storage system provides a simple solution for storing metal dies. Simply place a die on the magnetic sheet and it will be securely held there until you are ready to use it. Store the sheets inside the case and your metal dies will all be organized and contained. The case is made of translucent plastic and two sliding latched keep the lid securely shut. Overall measurements of the case are 9-1/4x10x2-3/4 inches, the magnetic sheets measure 9x7 inches. This package contains one storage case and three magnetic sheets. All dies sold separately.