The ADVANCED TASER® Weapon chassis is constructed of a proprietary polymer for maximum toughness, designed to withstand drops from over 10 feet. It’s built to take the abuse of every day police duty. In fact, the ADVANCED TASER® Weapon is backed by a life-time $25 no-questions-asked manufacturer's replacement warranty. Further, the ADVANCED TASER® Weapon has only one moving part - the safety, making high technology simple and reliable. No moving parts to break, or complex motor skills required.