Create your own pattern, water coverage up to 5,800 square feet, 86' diameter; Programming disc easily adjusts up or down at 12 points within a single rotation; Rotation control adjust trip lever and collars for full or partial coverage; Special speed control for even coverage; Durable sled base provides stability, impact resistant, rustproof polymer construction; Ideal for uniquely shaped yards; 11" W X 12" L X 7.5" H; The Gilmour pulsating Pattern Master sprinklers allow flexibility in watering unique-shaped lawns. The Flexible Pattern Ring has 12 adjustable points for controlling the distance of spray. By pushing up the red ring from underneath you reduce the distance, by pushing it down from the top until flat you maximize the distance. Pattern Master sprinklers also have a rotation control technology. You can adjust the trip lever and collars for full or partial coverage of your lawn.