For holding your half parasol, look to this fillable umbrella base. Fill it with 18kg of water or 21kg of sand to keep it weighed down. It is engraved with a top pattern for a decorative touch to your outdoors. The metal pole with tightening screws holds your umbrella securely and evenly in place, so the umbrella can provide much-needed shade. Made from tough plastic it's suitable for outdoor use, in plenty of different weather.- Suitable for half umbrellas with 3.8 cm, 4.8 cm diameter poles; - Holds 18kg water or 21kg for plenty of weight. Port for easy filling; - Tough plastic shell, suitable for outdoor use. Wipes clean easily; - Strong metal holding pole, with tightening knobs to secure umbrella pole; - Must place against a wall; - Assembly required;- Colour: Black; - Material: HDPE, Metal; - Overall Dimensions: 50L x 31W x 18H cm; - Net Weight: 2 kg; - Fits Umbrella Pole Size: Φ3.8 cm, Φ4.8 cm; - Item Label: 84D-168; - Note: Please measure your umbrella pole diameter in advance to make sure our umbrella base fits your umbrella well.;