Ray Padula RP-PPZS The Pulse Plastic Pulsating Sprinkler on Zinc Spike (Discontinued by Manufacturer) Grooved water deflector; heavy-duty zinc spike Distance control dial; precision molded, internal nozzle; circular spray pattern up to 85-Feet diameter, 5,671-Square Feet In-series connection spike; heavy-duty, thick drive arm Grip tite adjustment collars adjust the watering pattern to any part of a circle; water saving, anti-backsplash arm design Lifetime guaranteed satisfaction policy