?? [What you Get]- Comes with 20 pieces of aligner tray seaters, enough to meet your using and replacing needs. And we provide a 100% satisfaction guarantee. Our team of dedicated professionals is more than willing to help you along the process and willing to answer questions 24/7. For any questions or concerns, just send us a message. ? [Safe and Durable]-Made of food-grade silicone material, mint flavor, BPA-free, flexible, soft, and durable. Have texture and not slippery; When you bite, it will not fly away from your teeth. ??? [Easy to Use]- Step 1: Adjust and press the aligner, Step 2: Bite the chewie from left to right with your teeth, Step 3: Clean the chewies after use. ?? [Prevent Facial Deformities] -Wearing braces may have an insufficient bite force of the teeth, which will cause facial weight loss, and our aligner chewies help you exercise the masseter muscle and prevent the problem. ?? [Help Seat Aligners in Place] - Comfortable to chew, helps your aligners are seated fully on your teeth, making your treatment progress faster.