Sure Pop Spray Head, Half Circle, 180 degrees. Full 4-inch (10,16 cm) pop-up clears taller grass and other obstacles. Patented stem seal keeps debris out, prevents pressure loss from flow-by and ensures pop-up at low water pressure. Eight assembled patterns available: Full, Half, Quarter, End Strip, Center Strip, Side Strip, Square and Adjustable Pattern. Adjustable Pattern nozzle waters any part of a circle from 0 degrees to 360 degrees. Easy to adjust pattern for complex watering needs - no tools needed. Distributes water evenly regardless of pattern set and is compatible with other Rain Bird matched flow rate nozzle. Overall body height: 6 inches(15,24 cm).