Spring Hinge Plastic Material Black Matte Finish 66 lb Self-Closing/660 lb Gate Load Load Capacity With Holes 2 Holes per Leaf No Ligature Resistant 180 Degrees Range of Motion Orientation Non Handed 3 3/4 in Door Leaf Height 3 3/4 in Frame Leaf Height 1 1/8 in Door Leaf Width 1 1/8 in Frame Leaf Width 0.35 in Door Leaf Thickness 0.35 in Frame Leaf Thickness Square Corners Included Hardware Full Surface Mounting 1 1/16 in Overall Knuckle Height 1 Pair