Our polywoven canvas, plastic sandbox covers are a great addition to the play area. To start with, they prevent sand and toys from being blown away by storms. Second, sandbox covers keep the sand clean by keeping out animals, leaves and tree branches. Our covers also protect the sandbox surface, which prevents mold and rot on wooden surfaces. Finally, these sandbox covers have a pleasing, cool blue color that looks great on any play area. This sandbox cover has two ties that you can use to secure the cover to the base of the sandbox.