Get precise results every time from your Gemini Midi When using the Gemini Midi Manual Die Cutting Machine from Crafter's Companion, creating a thicker plate combination is vital for those more detailed or thin designs as it increases the pressure as your dies pass through your machine. This not only ensures the cut is even more precise but gives your dies an added layer of protection. Simply add the Gemini Midi Plastic Shim between your Gemini Midi Plastic Folder and pass through your machine as normal. Dimensions: 6" x 9" (15cm x 23cm) Care instructions: To care for your Gemini Midi Plastic Shim, please flip and rotate it after each pass through your machine. If the Plastic Shim does start to bow, flip it over and pass through until it is flat again, then continue to flip and rotate as normal.