50mm Triple With Switchable Ratchet & Adjustable Cleat. The A2058 features our patented dynamic bearing technology, which comprises of high-quality stainless steel ball bearings running on stainless steel rails. providing unsurpassed performance under load. An ideal choice for Catamaran and Keelboat mainsheet systems. The cleat angle can be simply adjusted. Removable becket pin for customisation of purchase system. Anti-snag elastic to stop the sheet from getting wrapped.