Three-dimensional replicas that visually portray human fat and body muscle. Made of long-lasting vinyl plastic. Replicas represent approximate volume of real fatty tissue and muscle tissue, weights vary. Includes 1-lb. Fat Brick (WA33726G), 5-lb. Fat Brick (WA33727G), 1-lb. Muscle Brick (WA33728G), and 5-lb. Muscle Brick (WA33729G).