Description: - be used to exercise the flexibility of , suitable for language s such as slurred speech, stiff , and pronunciation. - of , flexibility and stability. Improve and coordination. - It tool for the trainer, enabling the trainer to independently the flexibility and stability of . - There are of use, up and down exercise training and left and right alternate exercise training, choose according to your own situation. - Mainly to solve the language development problems of children elderly, such as children' pronunciation, elderly who cannot clearly. Specification: - Size:15x5cm 6x2 inch - Material: - Use: - choose according to your own situation - Up and down exercise training - Open your mouth wide, put tip exerciser upright in the middle of your mouth, and push the ball from the bottom to your , bottom. Repeat training 50100 times - Left and right alternate exercise training - Open your mouth wide, place the exercise trainer horizontally in the middle of your mouth, push the ball from your , and repeat the training for 50100 times. Package Includes: x Exerciser (Random Color)?For Language ? be used to exercise the flexibility of , suitable for language s such as slurred speech, stiff , and pronunciation. ?Improve ? of , flexibility and stability. Improve and coordination. ?For Children Elderly?Mainly to solve the language development problems of children elderly, such as children' pronunciation, elderly who cannot clearly. ? of Use?There are of use, up and down exercise training and left and right alternate exercise training, choose according to your own situation. ?Professional Tool?It tool for the trainer, enabling the trainer to independently the flexibility and stability of .