The ear thermometer covers are compatible for all models including ExactempThermoscan 7 IRT 6520, IRT6020, IRT6500, 3 IRT3030, IRT3020, IRT4020, IRT4520 and so on. Great Material: The ear thermometer probe covers are disposable and recyclable, 0% and 0% latex. Protect the lenses of the thermometer from scratches and impurities. Please avoid the use between different users, the probe cover must be replaced after each use. Color: transparent Material: PE Package Contents: 120 * Ear Thermometer Cover Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.