SPORTNOW Power Twister 22-440lbs Arm Trainer Adjustable Hydraulic Arm Workout Equipment Forearm Training Device for Chest Shoulder Strength Training Men and Women

Adjustable resistance levels: Optimize your workout with the Twister Arm Training Device by adjusting the resistance from 22-440lbs flexibly, adjustable in 20 levels using a rotating knob. Ideal for strengthening the upper arm, back, triceps, shoulder, and chest muscles. Enhanced safety features: This strength fitness equipment utilizes a micro-rebound mechanism that minimizes the risk of violent rebounds, enabling safe usage – for a smooth and controlled strength training. Reliable construction: This arm exercise device is equipped with a sturdy cast steel frame and high-strength plastics, as well as a durable hydraulic cylinder that has successfully passed over 100,000 load tests, ensuring consistent resistance. Ergonomic and safe design: Equipped with a non-slip TPR rubber grip, this Twister arm trainer ensures a comfortable grip and secure, stable handling thanks to its triangular structure. Safety buckle: To open, grab the handles with both hands and unlock the buckle with your thumb. To close after training, bring the handles together with both hands and lock with the buckle.