Thirty gallons across a 35.5 x 16 in cylinder makes this the heaviest roller in the range when filled - and 39 in of working width means a large lawn takes half the passes of a 24 in drum. Empty it weighs 41 lbs, so it can be positioned before filling rather than dragged full. A rustproof finish protects the steel where water sits. It tows behind a ride-on mower or pushes by hand for flattening frost heave, pressing seed and finishing turf on a big plot.