JawLine Muscle Fitness Exercise Ball | 1-PCS |

Description:

1) Boiling, when the product is boiled, the entire product should be placed in boiling water. Leave it for 15-25 seconds. Then rinse the product with hot water.

2) After adapting to the teeth, boil the product for 10-15 seconds and rinse the hot water, place the product on the teeth, and then gently press down on the white bite strips to make them most comfortable to mold.

3) practice then you are good! Please follow our recommended exercise regimen to get the best results and reduce the risk of injury.

- Material: Silicone

- Size: One size.

- Color: purple, blue, black.

- Blue level 1-40 pounds resistance.

- Purple level 2-50 pounds resistance.

- Black level 3-60 lbs resistance.