GateStop™ is the ideal gate alignment device for preventing hinge, latch and gate damage. It prolongs the life of your gate. There are three models to fit gates of different sizes and materials. Made from high-strength polymer materials, they’re guaranteed against rust, distortion and staining. For gates higher than 1200mm (4 feet) two GateStops are recommended to guard against severe "concussion" or twisting damage. IMPORTANT: GateStop™ should not be used on swimming pool gates, as toddlers may use them as footholds.