*1. Color: transparent *2. Material: TPE*3. Size: 61.54.1CM*4. Packing size: 8.53.89CM*5. Specification: phase 1, phase 2, phase 3 Phase 1:Hardness: soft Life cycle: use for about 1 month, for adaption and primary correction Phase 2:Hardness: medium Life cycle: use for 2-3 months, for further adaptation and correction Phase 3: Hardness: hard Life cycle: use for 3-6 months, for later correctionFeatures:*1. Made of food-grade TPE material, which is non-toxic, tasteless, soft and elastic, suitable for different people. *2. Adopt polymer nanotechnology, with good rebound performance and excellent correction effect. *3. It can correct your teeth without steel wire and bracket, invisible correction, and give you a confident smile. *4. Easy to wear or take off by yourself. Compact size, easy to carry. Package Includes:1/3 x Teeth Corrector Braces