V6216, Tru-Close, Self Closing Gate PVC Hinges, Feature An Internal Spring System, Ensuring Effective Gate Closure Every Time, Internal Stainless Steel Springs Eliminate The Need For Unsightly & Costly External Closing Springs, Use On Vinyl Or Wood Gates Sizes Up To 5' H x 3' W, 55 LB & Point Load Of 450 LB, Adjustable Tension, Easy & Safe, Will Never Rust Or Corrode, Super Strong Polymer Construction, Eliminates External Springs, Maintenance Free Self Lubricating, Quick & Easy Installation, Limited Lifetime Warranty.