These 15 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 0.5 mL graduation intervals up to 15 mL. These tubes are sold in packs of 500 (bulk or racked) * DNase/RNase free * Lot-to-lot traceability with easy tear packaging * Includes a writing area for easy labeling * Leak-proof screw caps * Available in bulk wrap or racked * Recyclable chipboard used for the racked versions, making them more environmentally friendly SPECIFICATIONS: * Autoclavable: True * Color: Natural * Diameter: 0.7 in (1.7 cm) * Graduations: 0.5 mL * Height: 120 mm * Material: Polypropylene * Max RCF: 11,000 x g * Quantity: Case of 500 * Sterile: True * Sterile Expiration: 3 YEARS * Volume: 15 mL