Multifunctional design This arm trainer offers a versatile workout that targets different muscle groups to optimize your overall strength and physique. Improve muscle tone effectively Deep muscle exercises with this arm trainer improve body shape and muscle definition, resulting in improved strength and overall health. Suitable as an arm trainer for men. Convenient to use Easily set resistant values by rotating the cylinder to switch between weights. Simple and user friendly for beginners through advanced users. Scientific muscle building A closed cylinder design paired with a sturdy triangular structure provides safe and efficient exercises with long term strength stability. Use scenarios Home workouts: integrate this arm trainer into a short routine to work multiple muscle groups and build strength. Progressive training: rotate the cylinder to adjust resistance as you gain strength for continued improvement. Warm up and maintenance: use light resistance for activation before more intense training or during light training days.