Made of plastic for long lasting durability. Eliminates odors with automatic release of spray every 15 minutes for long lasting effects. Allows fixtures to stay clean and pipes clear. Battery operated and locking. Visual LED indicates need for new refill or low battery. Operates for two years on two D alkaline batteries (not included). Installation kit included. Package quantity is 1 Dispenser/Case. Size is 5" W x 3-3/4" D x 9" H. Apple Mint Scent Deodorizing Refills are also available. 5 Year Manufacturer's warranty.