Description:Best mouth guard for comfort. 2 Models for you to choose meeting your need.Features:They are different the one in transparent is hard it's for the first stage while the one in blue is soft it's for the second stage.Made of soft medical silica gel material it dosen't have a plastic smell or taste to it safe to wear.Designed for actively retrain the mode of the tongue and the peri-oral muscles of the mouth.Helps correct breathing habits and align the anterior dentition.With a mini denture case convenient for travel and daily use.Specifications:Type: Dental CareColor: Transparent; Blue (Optional)Material: Soft Silica Gel; EVAModel: Hard Soft (Optional)Item Size: Approx. 6.5 * 4.5cm / 2.56 * 1.77inPackage Weight: Approx. 32g / 1.13ozPackage Size: Approx. 7.7 * 6 * 2.4cm / 3.03 * 2.36 * 0.94inPackage List:1 * Tooth Orthodontic Appliance1 * Denture Case