Stopper made with modern lightweight materials, the molded parts DO 550 are made of high quality plastic, lightweight and impact-resistant.The cams and bases are made of marine aluminum, anodised for long life in the marine environment. a particularly hardened teeth design allows maximum adherence with minimal slippage, while being gentle to the tops.The release under load is positive and requires minimal effort.The opening and closing action of the mechanism is precise and easy to use, even with cold and wet hands, there is also a positive handle block in the closed position.The stainless steel cable glands are mounted on both the entry and exit points of the top, a feature that helps prevent wear and friction tops. The DO 550 range of clutches has the advantage of a bolt-on construction that allows for easy maintenance and parts replacement

Stopper made with modern lightweight materials, the molded parts DO 550 are made of high quality plastic, lightweight and impact-resistant.The cams and bases are made of marine aluminum, anodised for long life in the marine environment. a particularly hardened teeth design allows maximum adherence with minimal slippage, while being gentle to the tops.The release under load is positive and requires minimal effort.The opening and closing action of the mechanism is precise and easy to use, even with cold and wet hands, there is also a positive handle block in the closed position.The stainless steel cable glands are mounted on both the entry and exit points of the top, a feature that helps prevent wear and friction tops. The DO 550 range of clutches has the advantage of a bolt-on construction that allows for easy maintenance and parts replacement

Stopper made with modern lightweight materials, the molded parts DO 550 are made of high quality plastic, lightweight and impact-resistant.The cams and bases are made of marine aluminum, anodised for long life in the marine environment. a particularly hardened teeth design allows maximum adherence with minimal slippage, while being gentle to the tops.The release under load is positive and requires minimal effort.The opening and closing action of the mechanism is precise and easy to use, even with cold and wet hands, there is also a positive handle block in the closed position.The stainless steel cable glands are mounted on both the entry and exit points of the top, a feature that helps prevent wear and friction tops. The DO 550 range of clutches has the advantage of a bolt-on construction that allows for easy maintenance and parts replacement