Specifications: Keep your lips from any stimulating. It can be sterilized at high temperature. High temperature and high pressure resistance 134 degree celsius. The extended handle is easy to grasp. Smooth surface makes the patient very comfortable. Help open your mouth during bleaching or other dental treatment. Item Name: Mouth Opener Material: PC Features: Dental Mouth Opener, Y-Shape, Transparent Size: 13cm x 4.25cm x 2.7cm/5.12" x 1.67" x 1.06" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Mouth Opener