Description: Protect & beautify the edges of your mounted images! The Perimeter Trim System® is a great way to add value to your work and increase profits for your company. Create a standard of quality that your customers will come to expect and keep them coming back! Perimeter Trim System® Die Set #PERD1316 fits 5/32, 3/16, 1/2, 13/16. Perimeter Trim System® Die Set #PERD183814 fits 1/8, 1/4, 3/8.