the oversized tube cap with frosted marking surface, combined with the unique ring & groove closure, enhances the security of the liquid-tight seal, while minimizing the required locking forces for a more ergonomic opening/closing of the tube caps.
MTC Bio Microcentrifuge Tubes with Cap & Bags of 50 Tubes, Sterile, 1.Mtc bio's sureseal s micro centrifuge tubes are designed for a broad range of research applications, including enzyme digests, dna isolation/purification, centrifugation, incubation, and general sample/reagent storage. sureseal s tubes are manufactured under clean room conditions, using only bioclear co-polymer, an advanced polypropylene that maximizes clarity, centrifugal strength tested up to 28,000xg and the usable temperature range -90c to +121c.