Looking for a way to develop vise-like grip strength? Look no further than the Sinergy Push Up Pipes. These ‘PUPs’ maximize the work that you do with each push up by using a graduated cantilever design that grows with your ability. As you become stronger, you move further out on the level to increase the workout. With four different workout positions, the PUPS work so much more than a standard pushup by forcing you to activate stabilizer muscles for balance in your forearms, shoulders, back, and stomach. Proudly made in the USA by Sinergy Obstacle Equipment. Currently available only within continental US.