Eppendorf® Safe-Lock Tubes are the result of 50 years of continuous improvement and development. The original Safe-Lock tubes protect samples with excellent centrifugation stability, feature perfect sealing properties, and reliably prevent sample evaporation.

Ideal for high-speed centrifugation, high-temperature incubations, enzyme assays, and cloning procedures.

One-piece, polypropylene Safe-Lock tubes have flat-top writing surfaces for easy sample identification. Sealing cap lock snaps closed and stays closed while centrifuging, yet opens easily with one hand. Autoclavable at 121 °C (250 °F). Convenient color selection aids in sample identification.