The present invention relates to an apparatus and method which enables {HEAD ~ a technician} to hold a microcentrifuge tube in one hand, and to open and close the cap without requiring {TAIL ~ a second hand} 
The present invention relates to an apparatus and method which enables { HEAD ~ a technician } to hold a microcentrifuge tube in one hand , and to open and close the cap without requiring { TAIL ~ a second hand }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL