Big D PREMIER RESTROOM PRODUCTS are made from a specially engineered copolymer impregnated with a powerful organic odor-counteracting compound. They are available in the seven enticing Big D Premier Scents — fragrances that match and compliment each other. THE P.O.D. REFILL is a sold deodorant designed to fit into THE P.O.D. (PASSIVE ODOR DISPENSER) (sold separately) and will keep any small area smelling fresh for 30 to 45 days.