MULTIPURPOSE BUNDLE WITH 3 DENSITIES - Get maximum functionality with our hand therapy equipment that includes Soft, Medium, and Hard density stress balls. Everything you need in 1 bundle so you can go from warm up exercises to stress relief and strengthening & conditioning your grip, hand, and finger muscles. We have you covered for physical therapy, rehabilitation, stress & anxiety relief, and fitness. SPARK MULTIPLE SENSES AND RELIEVE STRESS – Our stress balls for adults anxiety stress relief improves focus, increases strength, and soothes the mind. A great wellness tool to bring mindfulness and help relax your mind and body. Perfect fidget toy for adults. STRENGTHEN YOUR GRIP, JOINTS & MUSCLES - Every squeeze with our stress ball will strengthen & condition your grip, hands, fingers, and forearms. Our stress balls could reduce symptoms for carpal tunnel, arthritis and help with rehabilitation and post-surgical recovery. ULTRA-DURABLE, PREMIUM QUALITY, LARGER SIZE – Our hand strengthener ball is made of a tear-resistant gel core and sleek non-stick fabric. Experience maximum grip & comfort. STRESS RELIEF WRIST BALLS & MINDFULNESS GIFTS - Let others experience this hand strengthening equipment for therapy. Great holiday gift. Portable which allows for on-the-go stress relief. Excellent fidget balls for adults and also great stress balls for teens!