Crafted from durable bullet-proof ballistic nylon backed with vapor barrier for long-lasting use * Double spinner wheels assure exceptional maneuverability and keep zero weight on your arm * Made of lightweight industrial grade aluminum the ergonomic recessed extra long trolley handle locks in two positions and has an easy access push button to lock and release easily with one hand * Skid bar, reinforced corners and kickplate offer additional protection and minimizes impact at key stress points * Limited lifetime warranty