Designed to be placed at the entrance to barns or pastures to disinfect boots and shoes of those who enter or exit. Use at the entrance/exit to quarantine area or between pastures to reduce the potential spread of parasites. Can be used inside or outside. Works best on a flat surface however the design of the outer cover allows the mat to be placed in a slight grade as well. Bladder is made of tough poly mesh over a foam core and is removable and machine washable. Made in the USA.