Nelson, 13,500 SQFT Maximum Coverage, Traveling Sprinkler, With Automatic Shut Off Valve, Rust Resistant Cast Iron Body, Durable Brass Hose Connection, Built In Automatic Shut Off, Ramp Can Be Placed Anywhere On Hose, Ramp Trips Lever & Shuts Off Water, Low Speed Transmission, Adjustable Spray Arm With Regular Nozzles, Patented Rear Wheel Cleats.