(1)Material: steel, brass, stainless steel (2)Size: 3"*2.5", 4"*3". 4"*3.5", etc (3)Finish: YZ, WZ, NP, CP, GP, AC, BP, etc Solid brass hinge, with ball bearing, antique brass, ball tipSizeThickness Finish3" x 2.5"1.8-3.0mmGP, SG, BP, SN,NP, CP, BN, NB,BB, AB, AC, DCB,BCP, GB, SELF COLOR4" x 3"2.0-4.0mm4" x 3"2.0-4.0mm5" x 3"2.0-4.0mm6" x 3"2.0-4.0mm……