Seventeen gallons in a 35.5 x 12 in cylinder gives more pressure per pass than the 13 gallon drums, which suits levelling a lawn after winter heave rather than just pressing seed. The handle detaches for storage or for towing behind a machine, and the whole roller measures 39 x 12 x 54 in with the handle fitted. A rustproof surface treatment protects the metal where water sits inside. Empty weight is 31 lbs. Fill with water for general work or sand where more weight is wanted without more volume.