modern double-sided transparent photo frame wholesale plant specimen box photo frame of density fiberboard photo frame european diy picture frame 现代双面透明相框摆台批发植物标本框密度板相框摆台欧式diy画框

3.5*5-inch [inner frame 8.9 * cm]] 4*6-inch [inner frame 10.1 * cm]] 5*7-inch [inner frame 12.7 * cm]] 6*8-inch [inner frame 15.3 * cm]] 8*10-inch [inner frame 20.3 * cm]] a4 [inner frame 21 * cm]] square 6-inch [inner frame 15.2 x15.2cm]] square 7-inch [inner frame 17.9 x17.9cm]] square 8-inch [inner frame 20.2 * cm]]

wood grain color walnut color