This large metal roller by Outsunny is perfect to flatten your garden lawn, it can be filled with up to 40L of water or sand. The weight can be controlled by how much it is filled. It comes complete with a scraper bar to clean off loose debris and not roll back on to your lawn. An effective way to get rid of the imperfections in your garden lawn. OUTSUNNY 40L Lawn Roller Grass Ground Garden Push Tow Landscaping Sod in Green