With our Outsunny weights for umbrella stand your patio umbrella isn't going anywhere. This umbrella base is made from durable HDPE material that is resistant to all weather elements. Furthermore, the umbrella weights for outside have easy to fill spouts that can be filled with either sand, water, or a mixture of both to achieve the weight you need to anchor your umbrella. Keep your outdoor space protected from the sun with this durable water filled umbrella base!