These Conical-Bottom Microcentrifuge tubes are made of super-clear, high-quality USP Class 6 gamma resistant polypropylene.

• Available in three volumes: 0.5, 1.5, and 2.0 ml
• Engraved graduations ensure accuracy
• Flat and frosted caps surface together with smooth and frosted body surface
• Clear and legible marking area provided
• Tubes can be spun up to 25000×g
• Autoclavable at 121 °C and freezable to –80 °C
• DNase-free, RNase-free, and non-pyrogenic

They feature a positive seal design that withstands repeated cap closures and will not pop open during boiling. Tubes fit all standard rotors.