Maintain fresh, dry and odor free shoes with the Moso Natural Mini Air Purifying Bags. Overnight, powerful moso bamboo charcoal ionically attracts particles like a magnet and continuously works to remove lingering smells, odor-causing sweat and excess moisture. This odor eliminator is a safe alternative to traditional shoe fresheners that typically contain harmful chemicals and overbearing fragrance. No messy sprays and safe to use on any fabric or material. With routine rejuvenation, the Mini Moso Bag lasts up to 2 years! Simply place outside in the sun once a month for one hour. After two years as an air purifier, cut open the charcoal bag and sprinkle into your garden to promote plant growth. Designed for small items and spaces such as shoes, gym bags, sports gear, gloves, helmets, backpacks, luggage or drawers. Each pack includes 2 Mini Moso Bags with 75 grams of moso bamboo charcoal each.