The 'A3 Aussie Black (CG)' certificate frames have a 15(w)x15(h)mm matte black wood frame, a pane of (CG) clear glass insert, a 2mm MDF~Craftwood back with several steel flexible tabs to hold the frame firmly together. You can easily and quickly bend or flex the tabs to remove the back and insert the certificate or artwork inside the frame. No fitting or servicing by a picture framer is needed. After inserting the art, the clips are bent back and the fitted frame may be hung. The provided screw-on hangin kit at the back of the frame allows for portrait (vertical) or landscape (horizontal) wall hanging. The certificate picture frames are shrink-wrapped, fitted with white cardboard corner protectors and suit standard 'A3' 29.7x42cm paper or artwork.