Testrite aluminum Snap Frames are also known as aluminum front loading frames. Snapframes are popular because of their ease of use and convenience. Buy the snap frame extrusion sticks in long lenghts to make your own snap frames. Stocked in a 1 1/4" EasyOpen profile at standard width and 3/4" SupraSlim profile with a slim 3/4" top leaf. We offer aluminum extrusion profiles for making your own Snap Frame lightboxes as well in both the 1.25" and 0.75" SnapFrame profiles. If you'd prefer to buy complete assembled frames, including in custom sizes, check out our Testrite Visual website here.