Size : Approx. 12x0.8x0.8cm Tradital glass : This is a tradital glass body temperature measurement with built-in,which can accurately measure the body temperature Scope of use: Mainly used for armpit temperature measurement,and can be used in the mouth if necary A must-have tool for the home: A must-have tool for the home,the has clear s on it,allowing you to quily read your temperature After-sales service: Dear customers,our products not only have quality assurance but also after-sales service,if you have problems about the products,we can soe your problems in 24h.