“Flex Magazine Beginning Bodybuilding Video Series” S:1 E:3 “Build Serious Mass”

S:1 E:3 “Build Serious Mass” Episode 3: Massive Legs: “Build Serious Mass”. The Flex Magazine Bodybuilding video instruction series featuring bodybuilding superstars Boyer Coe, Shawn Ray, Lenda Murray, Flex Wheeler, Kevin Levrone, Vince Taylor, JJ Marsh, Anja Schreiner, & Achim Albrecht.