The Expert Gardener oscillating lawn watering sprinkler offers an easy click dial to adjust the watering pattern, allowing the sprinkler to conform to an array of yard widths and lengths. Choose from full, partial, left, or right coverage. Although the oscillator only weights 1.85 pounds, it features a heavy duty planetary gear train and smooth-action cam drive for lifelong performance and reliability. The wide base has been designed to make repositioning easy and to reduce tipping during watering. There are 21 spray nozzles providing even watering coverage without creating puddles. The plug at the end of the spray tube can easily unscrew to reveal a clean-out tool used to clear clogged jet nozzles.