Made of rubber, hypoallergenic, nontoxic,phthalaes and latex, they are safe for kids and adults alike;The material inside and out are the same, strong and durable, unlike many other stress relief balls, they are highly tear-resistant
The therapy balls can improve strength, relieve stress and muscle tension from computer work, and relieve joint pain in your hand, wrist, and forearm with simple squeezing and rolling; helps increase flexibility
Made of 100% thermoplastic rubber (TPR), hypoallergenic, nontoxic, reusable, recyclable, and phthalate and latex fee. Our stress relief balls are lightweight, durable, and safe for kids and adults alike. Wash with warm soapy water to clean
Perfect for home, travel, office, classroom etc. Ideal training product for rock climbing, bodybuilding, golf, tennis, squash, racquetball as well as piano, guitar and other musical instruments; It can also as fidget toys for children
It suits for primary strength training and rehabilitation training. Develop and strengthen grip, hands, fingers, wrists. Relieve stress and muscle tension from computer work.