Circular cryogenic labels formatted for handwriting. Tough Spots® on a roll are easy to write PVC cryogenic labels that accept writing from most lab markers. Tough Spots® come in a variety of colors and sizes to ensure the right label for the right job * Adheres to most plastics (100% virgin PP tubes recommended), glass and metals without cracking, peeling or degrading * Flexible polyolefin material and acrylic adhesive expand and contract with temperature fluctuations * Label Dimensions: 1.0 (25 mm) * Roll of 1,000 SPECIFICATIONS: * Autoclavable: True * Color: White * Label Size: 1 in * Label Type: Roll * Quantity: 1 Roll of 500 Labels * Use: 50 mL Tubes