The Camco Fridge Odor Absorber is an easy, space-saving way to help trap unpleasant odors in your refrigerator. It can either hang or sit on your refrigerator rack. The swivel design allows you to adjust the airflow and help maximize contact with air to trap more odors. The inner charcoal bag is replaceable and lasts up to 6 months. Absorbs and Traps Unpleasant Odors: Helps trap unpleasant odors in your refrigerator Absorbs and Traps Unpleasant Odors: Helps trap unpleasant odors in your refrigerator Saves Space: Hook it to hang it on the refrigerator rack or sit it securely on the grooves of the refrigerator rack. Perfect for RV, marine or dorm refrigerators Replaceable Charcoal Bag: Inner charcoal bag is replaceable and lasts up to 6 months Color: Blue