1.snap frame,mitred corner 2.25mm aluminum profile 3.MDF or PP back panel, ... .2. The width can be 32mm, 25mm.3. Round or mitred angle4.size: A3/A4, other sizes are available.5.openable ... the wall. snap frame Product name: snap frame, 25 mm, mitred corner Item NO:DSP-P08Graphic size:A0-A4Packing:29*38*20cm ... more quantity, the better price. aluminum clip snap frame, 25mm, mitred corner