Description: This sprinkler is easy to clean; install, saves water, general use of tap water. Often used as a rail, pre-made board sprinkler.How to adjust the range and angle of water control: 1. We turn the self-return control ring to outside to raise it upwards. this moment, the nozzle rotates at 360 degrees when rotating. 2. To control the size of the irrigation area, as long as the automatic return control loop down the dial, and then press the angle of the limit ring: you can adjust the watering range you want. 3. Adjust the nozzle control angle, the nozzle in the sprinkler operation, under the impact of gravity swing; water and stainless steel spring in the shock force, the formation of back and forth flapping, resulting in the work, this is the automatic rotating nozzle. 4. Nozzle operation, when the automatic rotation is adjusted to control angle, recoil pull rod and return control rod are affected at the limit ring, then rotate rapidly under the impact of the arm at the