(1):hinges type:clip-on;slide-on (2):hinges open angle:35~175 thickness of cup :3~15;diameter of cup:26 35 40 (3):hinges material:iron:alloy. (4):plated a coat of brass on surface, then plated again a coat of Ni and Cr for anti-corrode. (5) have three dimensional adjust or right and left adjust, the adjust distance is 0mm to 6mm email: