These Sarstedt centrifuge tubes are designed for various laboratory applications, offering a 5 mL working volume within a 75 x 13 mm dimension. Constructed from clear, transparent polystyrene, these round-bottom tubes allow for easy visual inspection of contents. The tubes are non-sterile and have a maximum centrifugal force capacity of 4,000 xG. Please note that closures are sold separately and are not included with this product. Push caps corresponding to Sarstedt item numbers 65.806, 65.818, and 65.724 are compatible options. This package contains 2000 tubes.