Connection structure between floating docks and steel tubes when it is used as mooring system for the marina. Rings availables internal or external to the pontoons. Made with galvanized steel for concrete pontoons/breakwaters, or aluminium for the light aluminum pontoons. Includes elastomeric blocks or rollers. These reinforced structures are another sample of our constructive quality, sign of identity of Ronautica Marinas. Just compare with other manufacture.