Boerboel Heavy-Duty Chain Link/Farm Hinge 73014313 Silver(2 pack) Made of Zinc Plated Powder Coated Steel Closing Mechanism is manual Gate capacity is up to 250 lbs. or 168 wide Testing ASTM B117 Salt-Spray tested and passed, Withstands 10-year-span open and close testing, averaging 5.5 openings per day Gate Upright Works with 1-3/4 to 2-1/2 or larger upright dimension, Chain and Farm Item contains 2 hinges per pack