• Full Upper Body Exercise Equipment: U Spring Bar is an upgraded version of the traditional power twister bar that stimulates more muscle groups. Including chest workout, wrist workout, arm workout, back workout, shoulder workout. It is a great choice for building a perfect body shape
• Durable Construction: U-shaped double steel spring powerful buffer rebound smooth, thickened steel tube to increase the training intensity, muscle shaping is guaranteed. Our twister arm trainer is durable and rust-resistant
• 3 Upgraded Protections: Twister arm exerciser is easy to exercise with curved grips, thickened foam handle is comfortable to grip, non-slip and does not hurt your hands. Wear-resistant holster wraps the spring to avoid sports injuries, not clip hair and muscles
• Adjustable Resistance: Chest exerciser for men, enhanced resistance 60-110lbs. Adjust the mounting distance between the spring bar and grip to change the level of resistance, customize the intensity of the workout, and build upper body muscle strength
• Portable Design: Unlike other arm workout bars, our arm trainer foldable design, easy to disassemble for convenient carrying and storage