http://www.greystoneamerica.com   206-817-3459  I am the National Distributor for the Greystone line of  Horse and Alpaca Products.  All our products are meant to be used with a 4  Wheeler, Quad , ATV or small tractor , for  simple, easy and quick  set up use!   Visit our website for video demostrations.    Makes your life easier gives you more time to spend with your animals rather than cleaning up after them.     http://www.greystoneamerica.com