100% NATURAL BAMBOO CHARCOAL: The bamboo charcoal bags are made of 100% natural bamboo charcoal, without any fragrance and chemicals. They are safe for children and pets. Effectively remove odors and bring fresh air. REUSABLE FOR 2 YEARS: Rejuvenate the charcoal bags by placing them under direct sunlight once a month for about two hours. It releases the void of bamboo charcoal, restores the effectiveness and maintains the service life of the bag for up to 2 years. EFFECTIVELY REMOVES ODORS: Bamboo charcoal absorbs 10x the odor of regular charcoal bags; eliminating musty odors with ease, quickly transforming your home air quality! MULTIPURPOSE FRESHENER: They are made with durable burlap bag with built-in metal hook design which is very easy to use and carry. You can put it in any corner of the car, shoes, kitchen, and more! EXCELLENT CUSTOMER SERVICE: Customers are at the core of everything we do. If you have any problem about this item, please feel free to contact us.