The makers recommend you say vowel sounds (AIEOU) out loud over and over again, producing regular and methodical exercises that will strength the twelve facial expression muscles in a comprehensive way.Service Item: 1. Our shop supports 7 days, 24 hours service. You can contact us at any time.2. Thank you for purchasing this product. If you have any questions during use, please contact us in time. We will reply you as soon as possible.3. If you are satisfied with the product, you can introduce to your friends and family. Adding fun to your life, we are indispensable.
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