1EASY TO USE: This Teeth Cheek Retractor keeps the mouth open and is easy to use with both hands for oral examinations and treatments. 2FUNCTION: It is used to keep the mouth open and reduce the patient's fatigue caused by opening the mouth, while the tongue gear can effectively limit the movement of the tongue. 3APPLICABLE SCENARIOS: Suitable for home dental care, teeth whitening salon, dental clinic oral examination, teeth, tongue, Tonsil Stones, etc. 4COMFORTABLE TO WEAR: This is an adjustable mouth opener that does not stretch the lips, you will not feel uncomfortable, with a suction tube, easy to suck saliva. 5DENTIST'S HELPER: This is a professional oral opening tool that meets the dentist's daily oral examination needs and helps the dentist to examine the patient's mouth more easily.