D&D Technologies TruClose TCA3L2S3BT Self Closing Pool & Child Safety Gate Hinge (Vinyl & Wood Gates, Black) Self-closing, adjustable hinges designed for vinyl & wood gate types Unique, patented tension adjustment for quick & easy gate adjustments Add extra strength to an installation due to the additional fixing points Hidden screws and internal spring closer enhances the look of your gate Weather-resistant and "self-lubricating" materials offer smooth closure