Beautifully stitched linen bags containing extremely porous bamboo charcoal. For added convenience a metal grommet is embedded in the upper left corner. Place the Breathe Green Eco-Friendly Charcoal Bags in numerous locations such as your car, closet, bathroom or any enclosed areas in your home and office. Removes toxins from the air, trapping them inside. Unlike Febreze which ADDS toxins to your air!