Wanting to mount them, I initially set up my favorites in a small frame that was glass on both sides and kept pressure on the contents with plastic edgings. This worked well for a small frame, and I set up all of the "portraits" this way. I don't care about keeping the reverses showing, but I would like them to be removable if absolutely necessary. The images have both horizontal and vertical orientations, so a matte job won't work. The cards are 6.25 x 4.75 cm, or 2 5/8 by 1 3/4 in. These frames are designed to display your card collection without damaging them in any way, no gluing or tape is required, your cards simply sit in the mount cut-outs and are sandwiched between two sheets of glass so both the front and rear of the cards can be viewed. I DO NOT ship glass so this is something you will have to organise with your local glazier (preferred option) or picture framer (who will probably charge more than a glazier). Glass is too dangerous to ship and although some companies ship with acrylic glass I do not, as the acrylic is usually too flexible to hold the cards in position, especially with larger sized frames.