Feature: Promotes hand health and Rehabilitation: Finger Strengthener Ball to progressively rehab a hand post-injury or post-surgery, fingers become stronger, it can help elder add repetitions to reap additional benefits Made with 100% high-quality Silicone free of BPAs, phthalates and latex. Our stress relief balls are strong, durable and safe Squeezing them builds strength and endurance in hands, finger, wrists, and forearms. Especially those with ADD/ADHD, OCD, autism, or high anxiety levels Exercise easily and anywhere: Finger Strengthener Ball are lightweight and you can bring them wherever you want in your bags, suitable for many occasions, such as school, home, office and so on Gift choice for your family: It is also great for targeting muscles in adults' hands and fingers. Help preventing tension, increasing limberness and alleviating joint pain Specification: Material: Silicone Style: Ball Product Dimensions: 4.33"L x 3.74"W Shape: Round Promotes hand health and Rehabilitation: Finger Strengthener Ball to progressively rehab a hand post-injury or post-surgery, fingers become stronger, it can help elder add repetitions to reap additional benefits Made with 100% high-quality Silicone free of BPAs, phthalates and latex. Our stress relief balls are strong, durable and safe Squeezing them builds strength and endurance in hands, finger, wrists, and forearms. Especially those with ADD/ADHD, OCD, autism, or high anxiety levels Exercise easily and anywhere: Finger Strengthener Ball are lightweight and you can bring them wherever you want in your bags, suitable for many occasions, such as school, home, office and so on Gift choice for your family: It is also great for targeting muscles in adults' hands and fingers. Help preventing tension, increasing limberness and alleviating joint pain