You will quickly learn that making the adjustments from a standing position is quick, accurate and very easy to do. You will no longer get (as) soaked by the adjacent sprinklers. Adjusting sprinklers is time and money to the contractor! First we eliminated the nozzle tree to save time in selecting and installing nozzles. Now the MP Matchstick makes the MP Rotator the fastest and easiest sprinkler on the market to adjust for arc and radius.Install the MP Rotator with the Left Edge Indicator pointing to left side of the desired watering area.