Material: TPR Size: about 17*3.5CM Package List 1*TPR soft rubber banana squeezing stretch vent toy 1The sphere can be squeezed to improve the flexibility of the hand. After letting go, the sphere will slowly return to its original shape. It can also be stretched repeatedly. 2 When you squeezing, it makes you feel very comfortable. It has a soft and easy to squash relaxing feeling. 3 You can squeezing it in the spare time of depressing work to relieve fatigue and feel conquered. 4 It is also your punching bag toy. Suitable for children and adults over three years old. 5 A self-regulating tool for children who have difficulty sitting or concentrating. Restlessness helps to promote concentration, and keeps your body (fingers) busy, so you can sit up and concentrate. It can also strengthen hand muscles, enhance exercise capacity and finger flexibility.