Bio Plas 6700 16mm Uni-Flex Safety Caps for Culture Tubes and Test Tubes, White (Pack of 1000)($34.39Value)

Description

Will not aerosol when opened Liquid tight seal prevents sample evaporation The Uni-Flex Safety Cap is designed to hold under centrifugation, agitation, refrigeration and freezing Stretchable, unique over-locking design is far superior to Parafilm. Locks securely onto the outside of the tube lip to prevent evaporation Easy, one hand removal and application. To close, press down firmly with thumb to lock in place. To open, simply pry cap up with thumb