OPTP B.O.I.N.G. Arm Exerciser

OPTP B.O.I.N.G. (Body Oscillation Integrates Neuromuscular Gain) Arm Exerciser provides combined isotonic, isometric and polymetric resistance in both closed and open chain environments. Facilitates subconscious motor mechanisms with repetitive muscle acceleration and deceleration. It increases concentric and eccentric force output. Comes with illustrated instructions.