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