Multiple rows of high-load ball bearings to reduce friction, and V-shaped line entry allow cams to open easily for snap-down, rather than draw-through, cleating. The line stays exactly where you want it as the smooth teeth grip line of all sizes, including small diameter hard line preferred by racers.Carbo-Cams especially appeal to racers. They are lighter than Harken's regular aluminum Cam-Matic cam cleats, and feature lightweight fiber-reinforced cams in Micro and Standard sizesAccessories include a variety of fairleads, wedges, risers & angled risers, and color-coded caps and flairleads. See separate entries for more info. Smooth tooth design squeezes line rather than cutting into it Cam design allows for engagement by maximum number of teeth for each size of line UV stabilized with carbon-black for maximum protection