Our rail mount hinge is easy to use to create an attachment point for your boat bimini top. Simply clamp around your boat rail, secure with the screw that is included, insert the support pole eye end with the included bolt. Hinge fits 7/8" rails. Made with a tough stainless steel, these mount hinges are versatile and can be used to mount boat fenders or other accessories you need. Taylor Made is a proud member of the Lippert family, a global manufacturer and supplier of engineered products for the RV, marine, automotive, commercial vehicle, and building products industries. At Lippert, our commitment to our customers is always moving forward, always making your experience better. Choose Taylor Made®.