Feature: Food grade Silicone and ABS Material,BPA-free,Dentist recommend. Aligner is small but powerful.Aligner Chewies make your braces fit snugly.Aligner Removal Tool quick remove Invisalign,Aligner and Invisible Braces.Easy to use,hygienic and reusable. Help the braces fit closely with the tooth surface to achieve a better orthodontic effect. Help the teeth to perform occlusal movement and shorten the correction time. Suitable for metal, ceramics, self-locking, non-self-locking, invisible beauty, time and sky, etc. Bite for 10-15 minutes a day and avoid braces on the face. Press the orthotic firmly into position first, then evenly press the orthotic into position with your fingertips. Place the biting horn in your mouth and bite gently, moving from one side of your mouth to the other, making sure that each tooth is touched. Fragrance:Strawberry, Original, Lemon, Grape, Mint. Include :5box Aligner Chewies and Aligner Removal Tool.