Lawn roller is a heavy cylindrical roller with a handle, used to compact the surface of a lawn after it has been mowed. It is essentially a large, heavy, cylindrical weight that is pushed over a lawn to flatten and smooth the grass. The most common use is to eradicate lawn bumps, in lawns of all kinds. Lawn rollers can also be used to roll out a newly-installed lawn, to make sure the grass bed is flat and firm. Rollers are also used to compact soil beds, keeping them level.