Magma 100% UV Protected Silver Railmount Umbrella STA LOCK FITTINGS ) or to display the Size:9 (42) ) or to display the depth from the waterline of the vessel Sikkens Cetol Marine Light quartA durable translucent satin protective wood treatment keeps you and your guests out of the harmful sun’s rays while the umbrella’s four corner tie down securing points can be used with tie down lines for extra support in windy conditions and the quick release round rail mount make adjustment easy in creating an extremely secure shaded area the windproof design will not allow the canopy to turn inside out or lose its shape in gusty wind conditions