Flexible, no calibration or batteries required. Non-toxic, mercury-free, latex-free, non-sterile. Accuracy: 0.2 degrees F or 0.1 degrees C. Shelf Life: 5 years from the date of manufacture. Storage: No climate controlled storage required. Range: 96 degrees F to 104.8 degrees F or 35.5 degrees C to 40.4 degrees C. Disposable single-use thermometer made of White PP with Urethane and Clear PETG. Each piece comes individually sealed in package with instructions, 4 individual packages are linked together, and there are 100 pieces total per inner box. Made in the USA