Feature:_x000D_ _x000D_ Made of high quality material, which is stretch, no smell. _x000D_ Withstand 121 degrees high temperature, can be sterilized with boiling water. _x000D_ Placed in the mouth can be very comfortable to open the upper and lower teeth, easy for doctors to operate. _x000D_ A good and effective intraoral supporting device when you see a dentist. _x000D_ Different sizes to meet the needs of people of different ages. _x000D_ _x000D_ Specification:_x000D_ Material: Medical Plastic_x000D_ Weight: 32g / 1.1oz_x000D_ Shape: Big, Middle, Small_x000D_ Color: Purple, Green, Yellow_x000D_ Product dimension:_x000D_ Big: 3.95*3.95*2.04cm / 1.56*1.56*0.8in_x000D_ Middle: 3.45*3.65*1.7cm / 1.36*1.44*0.67in_x000D_ Small: 3.3*2.8*1.7cm / 1.3*1.1*0.67in_x000D_ _x000D_ Package list:_x000D_ 3 * Device(1* Big+Purple, Middle+Green, Small+Yellow)_x000D_ _x000D_ Note:_x000D_ The actual product color may deviate from the photo due to light._x000D_ There may be a slight deviation in the measurement of product dimensions.