Can be filled with water, sand, or a mix, adding up to 35kg for enhanced stability. Surface coated to resist water and prevent colour fading in humid conditions; no colour transfer during transport or storage. Measures H32cm with tube x D57cm; provides stability to prevent umbrella collapse; suits any umbrella style. Made of durable HDPE plastic; resistant to oxidation; includes interchangeable sizing inserts and adjustable tightening knob for umbrella support. Features a built-in handle for easy placement in any patio location. Fits 38mm/48mm parasol poles.