* The Euro Green Black Quartz deodorizer is a passive deodorant system with no batteries or propellants. * The automatic fragrance experience ensures optimal ease of use.* Refills last more than 60 days and are made of uncooked and biodegradable clay.* The refills also have a Carbon Footprint Approved certificate. * No batteries required. * No propellant gas. * Automatic fragrance experience. * Dimensions: 137x60x63mm.