Spring Hinge Steel Material Satin Brass Finish 30 lb Load Capacity With Holes 3 Holes per Leaf No Ligature Resistant 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