Hozzen hand grip strengthener offers 6 levels of resistance (50, 100, 125, 150, 175, 200 LBS) to meet the training needs of different groups. Its ergonomic and ambidextrous design enables efficient finger, hand, wrist, and forearm muscle training for improved grip strength. And we offer special 125LB and 175LB for users to achieve better training results according to their own conditions. Crafted with high tenacity alloy steel springs and durable alloy aluminium handles, our hand grip ensure rust resistance, non-slip grip, and long-lasting performance. Ideal for workout, training, grip strength building, stress and pain relief, as well as rehabilitation and recovery. Suitable for heavy strength training, fitness enthusiasts , musicians, climbers, and therapy aid. The hand gripper is small in size and easy to carry. Perfect for training anywhere -- at home, office, outdoors, or gym. This metal hand grip kit is a considerate gift for both men and women.