Adtemp Disposable Thermometer Sheaths is a non-sterile, disposable design that helps eliminate cross contamination. Adtemp Disposable Thermometer Sheaths is a cost effective, easy-to-apply product which is suitable for both oral and rectal use. This product can also be used for all digital thermometers. Adtemp Disposable Thermometer Sheaths is proudly made in the U.S.A.