Removable autoclave-resistant piggyback labels ideal for metal, plastic, and glass surfaces, including surgical instruments, glassware, trays, blister packs, and other items intended for use in steam autoclaves, ovens, and gamma irradiators. Special label on label design allows you to print once and use smaller nested labels later on different surfaces as needed. Our durable autoclave thermal-transfer labels will not leave any adhesive residue after removal. They are weather & water-proof, alcohol-resistant, and have been tested to endure 20 autoclave cycles (at 121°C/250°F, 16.5 psi for 20 minutes). Compatible with all major brands of thermal-transfer printers.