1. Orthodontic chews can help your trays fit correctly and relieve the pain of wearing braces, transparent braces trays, effectively prevent deformities caused by braces. 2. Y-shaped handle design is easy to grip and will not fly out of your mouth like cylindrical chews to avoid choking hazard, especially for children. Strong pressure can be applied to specific teeth, such as molar area, incisor area, and canine area. 3. The chewers are made of soft silicone material, which is safe and lasts a long time. 4. Four flavors to choose from - tasteless (white), mint (green), grape (purple), strawberry (pink).5. Recommended for those whose new aligners don't fit snug and right, get these to help your aligners "sit" better and help orthodontic treatment progress more predictably.