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: 0.1875 (4.8 mm) Roll of 1,000 SPECIFICATIONS: * Autoclavable: True * Color: White * Label Size: 0.19 in * Label Type: Roll * Quantity: 1 Roll of 1500 Labels * Use: 0.2 mL Tubes