Paper Thermometers fully waterproof 8-Temp Thermolabel features eight incremental temperature sensitive elements that produce a non-reversible white to black color change at their rated temperatures. This provides a clear indication of which temperature has been reached. The temperature elements are fully enclosed and protected with a clear plastic overlay, providing both moisture protection and durability, making these labels ideal for a wide range of applications. The self-adhering indicators are available in packages of 16 labels each. Store in a cool, dry place.