Makes changing your oil a breeze.  No more climbing under or jacking up cars to change oil.  I have two Fiat Abarths and the only way to get to the oil plug is to jack up the vehicle.  Simply run the hose down the dipstick hole, pump it a few times and sit back and relax.  There is no mess from getting oil all over the ground and keeps hands clean.  The design allows you to quickly and easily dispose of the used oil by pouring it into a separate container.  Highly recommend.