The custom fit, Hexagonal 7" X 8" heavy duty nylon Sandbox Cover attached in minutes and keeps out pests, rain water and tard debris. To remove, just release the tarp tabs and remove the green nylon cover from the sturdy four feet square sandbox. The beach ball which lifts the cover above the sand and creates a dome effect also allows the air trapped inside to warm up the surface of the sand. In an instant children are in kid heaven.