LIUHUI Power Twister Bar, Upper Body Exercise Equipment for Chest Workout, Shoulder, Forearm, Bicep and Arm Strengthening Workout Equipment Ab Exerciser  (Silver)

About Resistance - The resistance of this arm bar is 70 kg/154 lbs, which can effectively exercise arm muscles Internal and External Double Spring Design - Electroplated gourd type spring design, corrosion and rust resistant, pressure resistant, high stability Anti-slip Grips - Anti-slip grips and wrist straps ensure your safety. When exercising, hold the wrist strap with both hands to make sure no one is around you Space Saving - Easy to carry and space saving, ideal for training at home and office Ideal for Fitness - Works the upper body and builds chest, shoulder, back and arm muscles