Mild gentle soap and soft bristle brush softly scrubs away dirt and stains from dirty ballcaps, hats and visors, shoes and laundry. Gently pre scrub away dirt and stains Can be used as a pre-scrub before washing, especially the inside rim and extra dirty stains For best results,place your pre-treated caps in the Original Ballcap Buddy Cap Washer Cap Cleaning Rack and place in the top rack of the dishwasher to safely clean and dry your ballcaps. Or Pre Treat, place in the Ballcap Buddy to keep its shape and hand wash your hats. Search for Ballcap Buddy Cap Washer on e-bay biodegradeable