This is a simple yet practical and effective new orthodontic trainer. It can be used for irregular teeth and wide gaps; after correction, the patient's teeth; after wire correction, it can be used as a dental tray. It is suitable for mild columnar, mildly crowded and misplaced teeth in adults; patients and aligners have sufficient clearance rate; orthodontic retainers are fixed after teeth. Size: 6 x 4 x 2.5cm- Suitable for mild columnar, mildly crowded and misplaced teeth in adults, etc.; patients, aligners have sufficient clearance; orthodontic retainers are fixed behind the teeth. - Good resilience and eco-friendly - does not harm teeth and oral tissues. Avoid the hassle and inconvenience of wire training, especially for those who are unable to do wire training. Note:- Orthodontics is a long process, please be patient and wait for the results. -The product is made of medical plastic with a little plastic smell, please rinse it with normal saline or toothpaste before use.