Sturdy construction:Umbrella Base is made of heavy-duty plastic ,is real hard and weather resistant, UV protection coating, waterproof, stable and durable
Weight Introduction:The whole base provides 150 lb weight when filled with sand or 180 lb when filled with wet sand, each plate can be filled with 38 lb - 44 lb of wet sand
Simple Assembly:A plastic funnel is included for filling in sand easily with instructions,Then just fill the base, and the umbrella can be placed at any areas
Fill Water or Sand:Fill the base with large weight of water/sand to make additional weight for Stabilizing your umbrella on a windy day
Product Composition:Plastic umbrella base plate set(4 triangular pieces for 1 set),The cross base and stand in the picture is only for display,Stable, Lightweight,Easy to move around and store