This Outsunny weights for parasol are great accessories to keep your parasol, umbrella steady. The parasol base weights come in 4 piece configuration to be placed on the cross feet of your umbrella. Made from a high density polyethylene material, our parasol bases can withstand most weather elements. Each of the pieces can be filled with water or sand to make them heavy and more secure. This patio umbrella base is a great essential to have as part of your umbrella to keep it safe and secure.