Disposable lung/mouth protection system is completely safe and sanitary, with no risk of cross-contamination and no need to sanitize between users. Provides reference point for hand placement and compressions. Trouble-free maintenance. Easy assembly. 4 lb. Single Set includes 1 Basic Buddy, 10 lung/mouth bags, and instruction manual; Set of 5 includes 5 Basic Buddies, 50 lung/mouth bags, 1 carrying bag, and instruction manual; Set of 10 includes 10 Basic Buddies, 100 lung/mouth bags, 2 carrying bags, and 2 instruction manuals.