A1,A2,A3,A4 metal picture frame 1.For posters promotion frame 2:Simple, easy to set up and carry 3.0.21*0.3M ... A1,A2,A3,A4 snap poster frame,metal picture frame,digital picture frame 1.Details ... °C and 20°C, and a relative humidity of 50%.(6).Transportation : A1,A2,A3,A4 snap poster frame,metal picture frame,digital picture frame