(4 Pack)-Carma Aromatherapy-Midnight Lavender Tranquility-Car Air Freshener, 2 oz. each (2 Pack)-Carma Aromatherapy-Midnight Lavender Tranquility-Car Air Freshener, 2 oz. each Each plastic canister holds Midnight Lavender Scented Stones. Convenient Scents to fit in cup holders, or under seats. Scents can be used in the home too. Ships Four-2 oz cups.