Place at the entrance to your barn so everyone's feet are disinfected before they enter. Tough poly mesh over a foam core; nonpermeable bottom and sides to contain disinfecting solution. When filled, mat repels dirt and is effective for one week before it needs to be emptied and refilled. Use any disinfectant, but a bleach solution will work just fine. Mat measures 18" x 18" x 3/4" and holds 1 gallon of solution.