The G-Tube Flat Top Microcentrifuge Tube is virtually transparent and far exceeds the toughness of any microcentrifuge tubes.Made of tough, clear, proprietary formulated polypropylene, the 0.6mL, 1.5mL and 2.0mL G-Tube has the same chemical resistant quality as standard tubes, but they're sturdier and virtually transparent to give a better view.

Bio Plas brand 0.2mL PCR tubes which are made of virgin polypropylene. These thin-wall reaction tubes are designed for use with 96-well thermal cyclers. Extra thin wall design is almost transparent for better viewing of contents and ensures rapid thermal transfer. This ensures a significant reduction in cycle and PCR reaction time. Tubes have attached snap-caps that "click" to let you know there's a good seal. Non-sterile. Autoclavable at 121°C.