This handy polypropylene Micro Tube Tool opens both snap cap and screw cap microcentrifuge tubes and PCR tubes easily. Prevents fatigue and saves stress and repeated pressure on your fingers and thumbs. This innovative microcentrifuge tube cap opening tool makes it a breeze to open tight fitting snap caps and lets you remove screw caps while tubes are still in the rack. Convenient and inexpensive, the Micro Tube Tool puts an end to difficult maneuvering and strain to open screw cap microcentrifuge tubes and any size snap cap microcentrifuge tube.