Vicloon Mouth Opener,12 Pcs Dental Opener,C Shape Cheek Retractors，Mouthpieces Replacement Retractors for Open Game, Dentistry,Teeth Whitening,Suitable Adults and Kids

[C shape design] - Ergonomic to use, highly anastomosis with your mouth. Helps give you an unobstructed view of the oral cavity. [High-quality materials] - 11.8*8.5*1.7cm(Medium Size),12 pieces to a set, made of medical quality polycarbonate. The edges are smoothed and these are comfortable to wear. [Protect oral health] - They're often used with home teeth-whitening procedures to open the mouth and keep the whitening agent away from lips and gums. [Methods of playing the games] - Put one of these mouth openers and try to say a challenge phrase while you can't close your lips,make your partner understand what you're trying to say, the fun begin. [Recyclable] - Features a sturdy, completely recyclable to save you money on the long-term. And please contact us if you have any questions about the product, we will give you a satisfactory solution.