About color: the color is bright and fresh, there are different colors for you to choose, please check the specific color as the picture. Non slipping: you can chew the aligner chompers in any part of your mouth easily and no need to worry that they will pop out; Safe silicone material provide soft and harmless chewing experience for you. Adequate quantity: you will receive 20 pieces aligner chewies in total, adequate quantity for you to use you share with your families and friends. Avoid changing face shape: using the aligner tray seater chewies can avoid changing face shape during the process of wearing braces, also make your teeth fit well. Help seat aligners correctly: these aligner chewies help seat aligners correctly and can make an easy adjustment to your aligner trays when wearing clear aligner trays.