LiftMaster Heavy Duty Uphill Hinge set Sold as set.LiftMaster Heavy Duty Uphill Hinge set Allows Gate to Swing Uphill Not for Use with Automatic Gate Operators* Heavy Duty Construction for Maximum Durability Dependable Roller Cage Bearing Design *ASTM F2200 Standard: Gate shall be designed, constructed, and installed such that their movement shall not be initiated by gravity when and automatic operator is disconnected. Specifications: Maximum Gate Weight: Up to 2,000 lbs. per pair. Sold as set. Set