Specifications: Material: Advanced silicone Color: pink,Red,orange,clear.Random Delivery) Stereotypes and Use: According to your teeth size to trim the braces Put the braces into 75 degrees hot water for about 10 seconds to make it soak soft Put it into the your mouth, with the upper and lower teeth gently bite the mouth guard (Do not bite the mouth guard too deep) Use your hand and tongue to assist to tight for half a minute, wash it with cold water after fully stereotypes If your braces have not adjusted proper, please re-start the above operation to stereotypes Clean it after each use, and put it into the box after it air-dry