Harken ball bearing cam cleats hold lines securely and release instantly for easy, precise trimming. Multiple rows of high-load ball bearings reduce friction so cams open easily for snap-down, rather than draw-through cleating. The cam horns and smooth V-shape guide the line for easy entry. This allows precise sail control without having to readjust the cleated line.Aluminum Cam-Matics are hardcoat-anodized for high-load, high-wear, continuous adjustment applications. The PTFE surface of the aluminum Cam-Matic improves the cleats fast line engagement.Specifications: Line size: 1/4" to 5/8" (6-16mm) Max. Working Load (MWL): 500 lb. Breaking Load: 1,000 lb. Height: 1 7/16" (37mm) Length: 3 3/8" (85mm) Width: 1 1/2" (38mm)Weight: 5.25 oz.Pawls: Aluminum Fasteners: 1/4" FH, 2 1/16" centers