Mouth Opener C Shape Lip Dental Teeth Whitening Dental Oral Cheek Flexible Retractor 19PCS Dental Care Kits Description Mouth opener is ergonomic to use, highly anastomosis with your mouth. This c-shaped mouth opener is also a 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. Features Mouth opener -Color: As shown. -Material: PVC. -Size: Large 13x9.2x2.1 cm/5.12x3.62x0.83 inch. Medium 11.8x9x2 cm/4.65x3.54x0.79 inch. Small 9.6x7x2 cm/3.78x2.76x0.79 inch. Package include: 5 large,10 medium,4 small. 19 mouth opener in total. Package Including 19 * Mouth Opener