Description: Pack of 300pcs Microcentrifuge Tubes: 5mL These tubes are offered with attached caps. Graduated tubes facilitate accurate sampling. The polypropylene tubes are resistant to most chemical reagents and can be steam sterilizing. Suitable for centrifuge maximum speed: 12000r / min Specification: Total length: approx. 55mm/2.17inch Lid diameter: approx. 15mm/0.59inch Package Includes: 300 Microcentrifuge Tubes