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. Available in tapered and skirted bottom variants * Lot-to-lot traceability with easy tear packaging * Writing area and flat polyethylene lids for easy labelling * Available in bulk wrap or racked * Imprinted graduations and a self-standing version (only in clear bulk pack) * Recyclable chipboard used for the racked versions, making them more environmentally friendly SPECIFICATIONS: * Autoclavable: True * Color: Natural * Diameter: 1.1 in (2.9 cm) * Graduations: 5 mL * Height: 114 mm * Material: Polypropylene * Max RCF: 9,500 x g * Quantity: Case of 500 * Sterile: True * Sterile Expiration: 3 YEARS * Volume: 50 mL