MLM Ball Wash Ballcap Baseball Sport Hat Cleaner Visor Washer (pack of 2) 0% Safely clean ball caps without wrinkling them No more dirty ball caps, just place them in the Cap Shaper,throw them in your dish washer on the top rack, and presto good as new Good for ball caps, visors and wool caps as well An excellent way to store hats too Now you can safely wash your favorite ball caps in the dishwasher, without destroying its shape.