StinkBOSS Shoe Deodorizer, Ozone Sanitizer and Dryer Deodorizes your shoes and active gear by killing the bacteria that cause odor Only StinkBOSS has a unique enclosed design that circulates ozone molecules through smelly materials, inside and out Ozone can kill up to 99% of harmful bacteria without the damaging effects of chemicals or solvents Ozone is an environmentally friendly oxidant, created using green technology, that produces zero waste Works great on all your stinky active gear  shoes, pads, hats, gloves  anything you wear but cant put in the washing machine! Helps your pricey gear last longer! Maintenance Free 12&#034; W x 13&#034; H Accommodates Shoes Up To 9.5&#034; Tall StinkBOSS comes with a quick start guide and safety tips to make it easy to use. Open lid and place shoes or gear over the formed air vents. Close the lid. Press the Plus button to set time and press the Start button to start. Follow the instructions in use guide for best results.