Sure Pop mechanism for watering and retraction into lawn when not in operation. Patented stem seal keeps debris out, prevents pressure loss from flow by and ensures pop up at low water pressure. Small foot print. Simple, top adjustment screw allows reduction of watering spray up to 25 percent.50" inlet. Waters from 0 to 360 degrees to fit almost any shape of lawn or planting area. Includes matched precipitation rate nozzles that allow sprinklers with various arcs to be mixed within the same zone providing an equal amount of water. 2.50" pop up height. 8' to 15' spray distance. Length: 1.8. Width: 4.3. Height: 1.8 Type: Pop-Up Sprinkler Head Type: Spray Head Material: Plastic Pop Up Height: 2.5 in. Features: 2.5" Sure-Pop Spray Head, Adjustable Pattern Full 2.5-inch (10cm) pop-up clears taller grass and other obstacles. Exclusive stem seal keeps debris out, prevents pressure loss from flow-by and ensures pop-up at low water pressure. 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.