Manufacturer: Hygenic Corporation Thera-Band Extra Firm Hand Exerciser is a specialized tool designed to enhance hand and forearm strength through targeted resistance training. With a resistance level of 17 lbs, this exerciser is ideal for individuals looking to improve grip strength, rehabilitation from injuries, or prevent muscle atrophy. Features: -Made from high-quality, non-toxic rubber, this hand exerciser is designed for long-lasting use. It can withstand repeated stress without losing its effectiveness, making it a reliable choice for consistent training. Beneficial for a variety of applications, including physical therapy, sports training, and general hand fitness. -The 17 lbs of resistance provided by the extra firm hand exerciser is perfect for advanced users or those in rehabilitation who need a significant challenge to build strength and endurance in their hands and forearms.