door and windows brass Hinge material:brass Steel hinges Finish: Silver lacquer, white lacquer, black lacquer,zinc plated, AB, AC, other finish to order Square Corner Thickness: 1.8-3.5mm Parameter SIZE FINISH 3"x3" Dull Brass Plated 4"x3" Dull Brass Plated 3-1/2"x3-1/2" Dull Brass Plated 4"x4" Dull Brass Plated door and windows brass Hinge