Shaker Twister Arm Trainer, Adjustable Power Twister Bar Chest Shoulder Workout

Adjustable Twister Arm Exerciser Multifunctional U-Shaped Wrist Strength Trainer Spring Arm Force Bar for Shoulder Arm and Chest Exercise. Versatile Workouts: The adjustable twister arm exerciser allows you to perform a variety of exercises targeting the muscles of the arms, chest, shoulders, back, and inner thighs, providing comprehensive upper body training.

eBay