The security of a screw cap tube with the ease-of-use of a snap cap tube. Thermo Scientific™ Graduated Safelock Microcentrifuge Tubes provide superior security during centrifugation. Simply position the hinged locking ball into the groove to prevent accidental cap opening, avoid evaporation and ensure sample integrity. Manufactured from virgin polypropylene these microcentrifuge tubes ensure sample integrity and security during boiling, freezing, incubation, and centrifugation.

• Simple one-hand operation snaps the hinged cap closed and slides the locking ball into place safeguarding valuable samples
• Hinged locking ball reduces stress on the thumb
• Smooth locking surface reduces the possibility of ripped or torn gloves
• Graduation marks on the microcentrifuge tube allow for effective sample reference
• Exceptionally stable performance under the stress of centrifugation preventing tube breakage
• Sterile tubes are individually wrapped and certified free of RNase, DNase, DNA, ATP, bioburden and endotoxins
• Non-sterile tubes are certified free of RNase, DNase, DNA and pyrogens
†U.S. and Canada Sales Only
Image(s) are representative of the product group and not necessarily the individual product.