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The 40 mm BLACKGOLD™ MEDIUM boom is a stiff and lightweight boom which is suitable for the majority of sailors. It is made from high grade, tempered tube. Fitted with captive eye straps, black nylon in- and outboard end fittings, nylon outhaul cleat, 4 mm Vectran outhaul and bridle, Vectran vang and outhaul trim gauge.