The 2 mL Screw-Top Tube with an O-Ring Cap creates an excellent seal for long-term and secure storage. These clear polypropylene tubes provide an excellent view of samples * Screw-on polypropylene lids with TPE O-ring (white) * Skirted, self-standing base makes filling and retrieval easy * Non-sterile * Frosted writing area SPECIFICATIONS: * Autoclavable: True * Color: Natural * Graduations: 0.5, 1, 1.5 mL * Height: 47 mm * Material: Polypropylene * Max RCF: 18,000 x g * Outer Diameter: 13.3 mm * Packaging: 500/Bulk * Quantity: Pack of 500 * Volume: 2 mL