[36 Units Nozzle Upgrade] wovuu lawn sprinkler with 3 adjustable spray modes per arm for a total of 36 units built-in. The garden sprinkler is a powerful irrigation device, you can adjust different nozzle modes according to the spray coverage you want[large coverage distance] the lawn sprinkler requires pressure of 28.4 PSI water to spin (range 32.8 ft to 49.2 ft at 80 PSI water pressure), and higher water pressure results in greater spray range depending on the different nozzle mode. Up to 32.8 feet with 5 holes per arm and up to 42.7 feet with 4 units per arm below 80 PSI; Up to 49.2 feet, 3 units per arm. To extend spray coverage, garden sprinklers can be used in series (Tip: Put the sprinklers in series, increase the water pressure)Note: The data is manual measurement, please allow 1-30cm error, due to differences between light and the screen, there will be a certain color difference, the specific received in kind prevail.