Disposable Covers For The Thermometer That Works Through The Ear Guarantee You Accurate Results In A Healthy And Clean Way Every Time, As It Guarantees You The Longevity Of The Thermometer As It Protects It From Dirt Or Earwax That May Accumulate And Affect The Temperature Sensor, Thus You May Get On Inaccurate Results. Made Of Harmless Material - Bpa Free, The Box Contains 20 Caps These Caps Are Compatible With All Models Of Braun Irt Ear Thermometers