Spring Hinge, Steel Material, Satin Brass Finish, 30 lb Load Capacity, With Holes, 3 Holes per Leaf, No Ligature , 180 Degrees Range of Motion, Orientation Non Handed, 3 1/2 in Door Leaf Height, 3 1/2 in Frame Leaf Height, 1 3/8 in Door Leaf Width, 1 3/8 in Frame Leaf Width, 0.099 in Door Leaf Thickness, 0.099 in Frame Leaf Thickness, 1-3/8 In. Required Door Thickness, Ball Bearing Type, Square Corners, Included Hardware, Full Mortise Mounting, 3 1/2 in Overall Knuckle Height