Acrylic Freestanding Double Sided Frameless Transparent Tabletop Plexiglas Frame Stand for Desktop Display 4x4 4x6 5x5 5x7 6x8 8x10 The Acrylic Picture Frame with magnets is two pieces of 3/8" clear acrylic held together with four strong magnets, one in each corner, except the 8" x 10", they are two 1/2" pieces. You can use this as a single-sided display for your photograph or double-sided and have a photograph shown on both sides. This frame can hold two pictures back-to-back. Pictures can be displayed either vertically or horizontally. Great for displaying wedding, baby, graduation, family photos, postcards, ticket stubs, trading cards, currency, awards, etc. Slide the blocks apart to change your picture. Easy to clean with soap water and a clean paper towel or a good acrylic cleaner like Brillianize. They are easy to update with new photos, all you do is slide them apart and replace the old photos with new ones in a matter of seconds. This item is for the 4" x 4" magnetic frame.