Description: Pack of 1000pcs Microcentrifuge Tubes: 0.5mL 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: Material:polypropylene Total length: approx. 33mm/1.3inch Lid diameter: approx. 10mm/0.39inch Package Includes: 1000 Microcentrifuge Tubes