• Ideal for use with serial dilutions, cell centrifugation, cell pelleting and washing, sample and buffer storage, virus storage and propagation, and storage of chemicals. • High-clarity polypropylene. • Flip-top cap is easy to open with one hand, is secure and leak resistant, and minimizes accidental cap mix-up. • Fit standard centrifuge rotors. • Large, white, solvent-resistant writing patch. • Easy-to-read blue graduations. • Class I medical. Sterile. Non-pyrogenic.