Outsunny Round Parasol Base Fits 38mm And 48mm Poles Sand Or Water Filled 20 KgProduct Overview The Outsunny Round Parasol Base is a sturdy, weatherready foundation designed to anchor garden parasols with pole diameters of 38 mm or 48 mm and parasols up to 2. 8 m in diameter. Made from recyclable, antiageing HDPE, its built to withstand outdoor conditions year after year. To secure your umbrella, simply tighten the handturn knob and position the base on a patio, deck or by the poolside for reliable shade when you need it. When