MBP 2.0 mL Microtubes by Molecular Biology Products are boil-proof polypropylene microcentrifuge tubes with attached caps for larger samples, extractions and storage. They are offered in clear, amber and five colors, assorted colors and a Spectrum Pack, as sterile clear tubes packed 50 per bag, and as Maxymum Recovery tubes for low sample loss. Tubes are certified RNase-free, DNase-free and nonpyrogenic.