If they do not “snap into place,” they may slip off the device and there may be deviations. Outer material Plastic.
Beurer FT58 Ear Thermometer, 795.33 With 10 Replacement Caps
Beurer FT58 Ear Thermometer with Memory & Interchangeable Protective Cap
Beurer FT58 Ear Thermometer with Memory & Interchangeable Protective Cap BNIB
Beurer FT58 Ear Thermometer, 795.33
Beurer FT58 LCD 3-in-1 Infrared In-Ear Thermometer Portable With Storage Box
