Anchor-Guard guarantees your anchor a snug fit on your bow. Anchors frequently do not fit well on the bow rollers and boat owners resort to either switching to a sub optimal anchor design in order to ensure a better fit or invest heavily in expensive custom solutions to better secure their anchor on the bow. Anchor Guard was designed to mate an existing bow roller with an anchor of any design. Simple install uses the same bolt that articulates your roller, and converts an existing bow roller into a custom bow roller for any anchor. The design incorporates: Sturdy 316L Stainless Steel Precision Casting, Polyurethane Pad, and all 316L Fasteners. The Mantus Anchor-Guard is the best way to get a custom fit without a custom price.See Mantus Bow Roller The Polyurethane Pad could be installed in two different orientations: Facing Forward – recommended for anchors with taller shanks: M2 Mantus, Vulcan, Spade, Bruce Facing to the Rear – recommended for anchors with shorter shanks: M1 Mantus, Rocna Original, Delta, Sarca-Excel, Danforth, Fortress