• SD-280A: Heavy - 10~40 KGS (Spring: 2.8mm)
• SD-280B: Light - 5~20 KGS (Spring: 2.3mm)

Give your hands a workout with the designed adjustable hand grip, and it is with the counter to show you how many reps were done. It is designed so you can adjust the tension levels to where you need them. The resistance levels range from 20 to 90 lbs, so you can constantly challenge yourself. This exercise hand grip is made with steel ring resistance and a non-slip grip. Use it to strengthen your fingers, forearms, and wrists.