Features: Steel Construction: Our U Shape Twister Arm Exerciser features a dense and strong steel tube, ensuring durability and safety during high-intensity workouts. Designed to help prevent spring breakage and reduce risk of wrist strain. Adjustable Resistance: Resistance can be easily adjusted by changing the buckle position, offering three levels of tension. Simply adjust the length to modify resistance level. Full Body Workout: Helps tone biceps, triceps, thighs, shoulders, and chest. Assists in lifting the bustline, defining upper body, trimming the waist, and shaping legs. This lightweight and portable tool supports lean muscle development without bulking. Suitable for All Users: Compact and quiet design allows for easy portability and use anywhere. Ideal for men and women of all ages and fitness levels seeking muscle toning and weight management. Quick and Effective Training: Just a few minutes of daily use can help build strength, improve muscle tone, and support weight loss. Lightweight design makes it convenient to carry and store. Notice: 1. Actual color may vary slightly due to lighting effects. 2. Please allow 1-3 cm variation due to manual measurement. Size: As shown in picture Material: Steel spring + foam Package List: 1 x U Shape Twister Arm Exerciser