Spring Hinge Steel Material Satin Brass Finish 50 lb Load Capacity With Holes 4 Holes per Leaf No Ligature Resistant 180 Degrees Range of Motion Orientation Non Handed 4 1/2 in Door Leaf Height 4 1/2 in Frame Leaf Height 1 3/4 in Door Leaf Width 1 3/4 in Frame Leaf Width 0.134 in Door Leaf Thickness 0.134 in Frame Leaf Thickness 1-3/4 in Required Door Thickness Ball Bearing Type Square Corners Included Hardware Full Mortise Mounting 4 1/2 in Overall Knuckle Height