This Hozelock AquaStorm oscillating sprinkler is the ultimate lawn sprinkler It is specially designed to give 100 even water coverage regardless of the water pressure It features an ultra reliable water-powered gear drive motor that operates at all water pressures 1-10 bar It is perfect for lawns and established plants The sprinkler can water a rectangle or a part of a rectangle Adjustment is easy - simply slide the red setting rings It is mounted on a stable sled which gives stability on a lawn or a border 2-Year guarantee