Adult Orthodontic Braces Pvc Instanted Invisible Silicone Teeth Alignment Trainer Mouth Guard Tray Tooth Retainer Dental Tools 100% brand new and high quality! Item type:Dental braces Color:Orange,Blue Material: PVC stage 1,stage 2 Stage 1 is softer ,use this blue one,give the mouth a time to accomodate. Stage 2 is harder, use this white one, ater the accommodation with the blue one. Features:Good resilience, non-toxic and environmentally friendly, with a slight odor Features: 1. The teeth are uneven and there is enough space between teeth; 2. Patients whose teeth bounce after correction; 3. After wire correction, it is used as a tooth retainer; 4. The teeth are protruding and lightly crowded, not suitable for patients with severely crowded teeth. Note: After the first stage A1 soft use 6-8 months, switch to the second stage A2 hard use 6-10 months, wearing 1-4 hours during the day and 8 hours at night, but there is no strict Restrictions, the dual role of tooth alignment and muscle function training will make the orthodontic appliance also play an effective role when worn at the tip. After the soft tissue function is improved, the strength of the muscles will produce a correction force for the teeth and jaws 24 hours a day. Packing included:1Pc Dental braces