These 50 mL Conical Centrifuge Tubes are all sterile and DNase/RNase free. They are made of durable polypropylene and come with a leak-proof screw cap. Each tube features a writing area for easy labeling and provide highly accurate measurements with 5 mL graduation intervals up to 50 mL. Opaque black for light sensitive samples * DNase/RNase free * Lot-to-lot traceability with easy tear packaging * Includes a writing area for easy labeling * Leak-proof screw caps * Sold in bulk wrap SPECIFICATIONS: * Autoclavable: True * Color: Black * Diameter: 1.1 in (2.9 cm) * Graduations: 5 mL * Height: 114 mm * Material: Polypropylene * Max RCF: 9,400 x g * Quantity: Case of 500 * Sterile: True * Sterile Expiration: 3 YEARS * Volume: 50 mL