A superior lock for safe and convenient centrifuging, boiling, freezing, incubation or storage of samples.

• Smooth surfaces reduce the possibility of ripped or punctured gloves
• Manufactured of ultra clear, autoclavable polypropylene

Locking microcentrifuge tubes offer the same sample security as found with screw cap tubes yet maintain the same ease of use as a snap cap. Unique design allows visual confirmation that the tube is locked. The pierceable cap snaps closed and the lock slips easily into place with a simple one hand operation. The larger, rounder cap design proves less stressful to the thumb.