RIB Xtenders 8.4 m Landing Craft Karel Overlaet, RIB Advocate A true watersport and utility machine, built from carbon fibre, Xtenders 8.4 m are a fast and reliable tender for any yacht. Others Also Read...Black Diamond's New OCM RIB Police EnforcementOcean Craft Marine Four-Wheel Drive Amphibious RIBExclusive: Discover the Making of GEMINI WR880 12 StepsThe Fun of Owning a Rigid Inflatable Boat (RIB): 8 Thoughts