Aquastorm 2'n1 geardrive sprinklers are the ultimate sprinklers. They are specially designed to give 100% even water coverage regardless of the water pressure. (1-10 bar). sprinkler can water a full circle or a part of a circle - adjustment is easy simply slide the red setting rings. There are two spray patterns : There are 5 jets which gives a max area coverage of approx 314m2 or 20m diameter. Perfect for lawns and established plants. Also there is a fine spray for smaller areas - perfect for watering lawn seed, seedlings, or damping down a greenhouse. The sprinkler is mounted on a stable sled which gives stability on any surface- two year guarantee.