Material:ABS+Silica gel</br>Size:5*2*3(CM)</br>Color:Blue</br>The anti-snore+breathing air purifier</br>Using a simple,easy to carry</br></br>Product Description</br></br><b>Note:</b> if the first wear feel difficulty breathing or feel not smooth,this is normal like now,because a <br> adapt to the product guide principle process,with more than a few times can adapt to return to<br> normal,this is not going to have any effect to the human body.</br><br/>http://www.amazon.com/gp/product/B0713YS64Z