Unlike conventional training devices, Gymstick ForArms Upper Body Gym provides isometric, isotonic and iso-kinetic training. This makes it ideal for general fitness and sport specific training where upper body strength is needed. Gymstick ForArms patented torque-resistant compression core provides consistent, maximum resistance throughout the full range of motion of the exercise and never loses its strength. You will increase strength, flexibility & range of motion with over 30 exercises to train your biceps, triceps, back, chest, shoulders, forarms & wrists. Use it anywhere - home, work, hotel. Comes in 5 different resistance levels to accommodate fitness starters to the most serious competitor. Includes intercative DVD and instruction poster