["Grip Strength Trainer Set: Improve your grip strength with FLYFEs hand grip sets; available in 4-packs (50-200LB) 6-packs (100-350LB) or single grips (50-200LB); ideal for athletes fitness enthusiasts and musicians" Rehabilitation and Strengthening: Designed to assist recovery from hand injuries arthritis or carpal tunnel; these metal hand grips also enhance strength and flexibility in forearms wrists and fingers Durable Construction: Made from knurled aluminum and high-quality springs; FLYFE hand grips offer a secure comfortable workout experience; built to last through your fitness routine Protective Grip Covers: Each grip includes two thickened foam covers that absorb sweat providing comfort during extended use; ensures a secure grip for better results Portable Fitness Tool: Lightweight and easy to carry; FLYFE hand grips are perfect for use at home in the office or on the go; making it easy to strengthen your grip anywhere]