Perfect for displaying large posters and signage outdoors, this lockable A0 snap frame features a weather and tamper-proof design. The tough, clear plastic window is designed to be non-reflective, so material will be visible to viewers even in sunlight. Other features include a locking hinged door with stays, rubber seals within frame to keep moisture out and 45mm thick frames. Available in A0, A1, A2, A3 and A4.