Randy Hetrick, a former Navy SEAL, has seen his fair share of battles and endured his fair share missions over the course of his career. During his various deployments he always tried to come up with creative and effective manners in which him and his men could continually stay in shape. While in Southeast Asia a simple idea occurred to Hetrick. Taking some parachute webbing Hetrick devised a device that relied on body weight. A device which him and his men used to do presses, curls, and flys.