Hello! Our children's teeth have six advantages: simplicity, comfort, beauty, convenience, time saving and money saving. You can take it off yourself and correct your teeth in your sleep. Moreover, there are no malodorous orthodontic materials, no steel wires, no brackets, invisible and completely transparent. The trouble and inconvenience of steel wire correction are avoided. And for buck teeth, deep coverage, deep overbite and uneven front teeth, it is divided into three models: large, medium and small. Parents in need don't hesitate ~