The black lite spar set has the same 45 microns black hard anodized mast and the same black anodized sprit as the black gold medium. The difference is the 32mm black lite bendy boom. It will depower the sail which enables the lightweight sailor to go faster in more wind. We now have Harken ball bearing halyard blocks and pure Vectran spliced lines. Feature for feature, there is no equal to the Optiparts Blackgold set. All black fittings, hard anodized cleats, a black sprit chafe guard, captive eye straps on the boom, a halyard cleat with a becket. Zero stretch, zero creep black, Vectran line package.