Multifunctional U-shaped arm trainer with adjustable style New spring arm trainer for chest muscle training Grip bar fitness equipment Chest muscle speed arm

By repeatedly bending and stretching the arm trainer, it can effectively increase muscle strength and endurance, especially suitable for those who want to improve their explosiveness and arm grip.

1: Portable and flexible to use, compact size, no fixed position required, suitable for home, office or outdoor use.

2: The arm trainer is relatively cheap, suitable for fitness enthusiasts on a budget, and the basic movements are easy to learn, suitable for beginners.

3: The resistance can be adjusted to 40-50 kg, and both men and women can use it.