Die-cast metal body with brass hose connection. Propels itself across the lawn following the pattern laid out by the hose. 2 forward speed transmission and a neutral for stationary use. Adjustable spray arms give coverage width of 15' to 55' along a 200' length of 5/8" hose. Automatic shutoff included. Hard plastic wheels. Based on 200' of 5/8" hose, coverage area is 13,500 sq ft (square foot).