Safe material:Made of custom high elastic food grade silicone.Our aligner chew are free of BPA and other harmful chemicals Efficient alignment: These retainer chew provide an effective way to prevent deformities caused by braces and make your teeth fit good. With a comfortable design and scientific structure, they help exercise your masseter muscle Non-slip design: The aligner chompers are designed to stay in place no matter where you place them in your mouth. You can chew them easily without worrying about them slipping or popping out Vacuum Packaging: Aligner seater chew each 2 pieces are packed in a vacuum bag, clean and hygienic You will Get: 120pcs aligner tray seater,10 colors flavors,White-original,Orange-orange flavor,Red-Strawberry,Green-mint,Dark Purple-Grape,Light purple-taro,Pink-peach,Deep yellow-lemon,Light yellow-mango,Yellow-banana Aligner Chew