Adjustable Power-Twister Arm Strength Trainer for Men & Women 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 wrist injuries. Adjustable Resistance: The resistance level can be easily adjusted by modifying the buckle. With 3 adjustable strength levels, simply change the length to adjust the resistance. Full Body Exercise System: 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 training tool supports lean muscle development without bulk. Suitable for All Users and Locations: Compact and quiet design allows for easy portability and use anywhere. Ideal for all age groups, genders, and fitness levels seeking muscle toning and fitness improvement. Effective and Efficient Training: Just a few minutes of daily use can help build muscle strength, improve muscle tone, and support weight management. Lightweight and easy to carry, it can be taken anywhere. Notice: 1. Actual color may vary slightly from the image due to different lighting conditions. 2. Please allow 1-3 cm deviation due to manual measurement. Size: As shown in picture Material: Steel spring + foam Package List: 1 x U Shape Twister Arm Exerciser