Create large, durable, and information-rich labels for your samples using the convenience of your office laser printer with these 0.75-inch Laser Tough-Spots®. These high-performance cryogenic labels are formatted on standard letter-sized sheets, allowing you to print crisp, detailed text and barcodes for easy identification. Their larger size is perfect for 15ml/50ml tubes and other containers where more data is required. Engineered to withstand the full spectrum of laboratory conditions, these labels will remain adhered and legible from liquid nitrogen storage at -196°C to boiling water baths and dry heat up to 150°C. Key Features & Benefits: Desktop Laser Printer Compatible: Formatted on standard 8.5" x 11" sheets to work seamlessly with your existing laser printer, enabling easy batch printing. Extreme Temperature Resistance: Built to endure a remarkable temperature range from -196°C to 150°C, making them ideal for cryogenic storage, autoclaving, and dry heat applications. Generous Label Size: The 0.75-inch (19mm) diameter provides ample space for printing detailed sample information, barcodes, and graphics. Chemical & Solvent Resistant: The chemically inert material and strong adhesive resist degradation from common laboratory chemicals, ensuring print remains intact. Strong & Permanent Adhesion: Engineered to stick securely to a variety of labware, including vials, tubes, beakers, and metal racks, even through extreme temperature shifts. Convenient High-Volume Pack: Supplied with 2,160 labels per pack, providing a cost-effective solution for extensive sample labeling projects.