Embrace the versatility of our refillable umbrella base.The umbrella stand is a perfect combo of planter box and umbrella base. More than that, an adjustable table tray is included, making the versatile umbrella stand a practical side table for your outdoor leisure times. Moreover, the versatile umbrella base features a fillable design for enhanced stability. Thanks to a weighted bag that can be filled with 55 kg water or 80 kg sand, the 3-in-1 umbrella stand can keep your 270-300 cm offset umbrella or 180-300 cm patio umbrella stable in windy conditions. With 2 adapters included 38 mm and 48 mm in diameter, the refillable umbrella base is compatible with most patio umbrellas. Also, there are 2 turning knobs to ensure a snug fit. Crafted from anti-fading HDPE material and reinforced with powder-coated metal tubes, the umbrella base is easy-to-maintain and enduring.