Multiple rows of high-load ball bearings and precise V-shape reduce friction, allowing Harken cam cleats to activate with the snap of the wrist. No need for draw-through cleating: a downward flick snaps the sheet into the cam and stays exactly where you put it. Flick up and the cleat releases instantly, even under high loads. Harken cleats are the only cleats that engage under maximum line tension. Three sizes in lightweight, wear-resistant materials: Cam-Matic: Hard Lube-anodized aluminum, or mirror-polished stainless steel; Carbo-Cam: UV-stabilized fiber-reinforced Carbo composite.