This Standoff A4 Portrait Magsmart is a wall mounted acrylic that opens from the top. The 2 magnets on the top hold the 2 pieces of acrylic together, holding the sign in place. It is easy to change the signs or certificates. The frameless acrylic is mounted by aluminium standoffs which are screwed into the wall.You will be supplied with 1 A4 Acrylic Portrait Pocket (21x29.7cm) made of 3mm thick Acrylic with sealed bottom part and 4 standoff fixings 28mm long 18.5 mm wide. Screws NOT supplied.