Find the perfect balance of size and writing space with these versatile 0.5-inch Tough-Spots®. An ideal solution for a wide range of labware, these circular PVC labels are particularly well-suited for the tops of 2.0ml tubes and other similar-sized vials. They are engineered to withstand the most demanding laboratory environments, adhering securely through a full temperature range from deep-freeze liquid nitrogen storage at -196°C to water baths and incubators up to 80°C. Their durable, write-on surface ensures your critical sample information remains clear and attached. Key Features & Benefits: Versatile Mid-Size: The 0.5-inch (13mm) diameter offers a generous writing area while still fitting perfectly on a wide variety of tube caps, including 2.0ml vials. Extreme Temperature Resistance: With a service temperature from -196°C to 80°C, these labels are built for deep-freeze cryogenic storage, freezer use, and general lab applications. Durable PVC Material: Tough PVC construction resists water and most laboratory chemicals, ensuring your handwritten information remains legible and intact. Strong & Permanent Adhesion: Engineered with a powerful adhesive to stick securely to small, curved, and irregular surfaces without peeling, cracking, or falling off. Write-On Convenience: The label surface is designed for clear, easy marking with all standard laboratory pens and markers. Convenient Roll Format: Supplied in a dispenser box containing a roll of 1,000 spots for quick and easy application at the bench.