These 1.5 mL microcentrifuge tubes are designed for a broad range of research applications, including enzyme digests, DNA isolation/purification, centrifugation, incubation, and general sample/reagent storage. They are manufactured under clean room conditions using an advanced polypropylene that maximizes clarity. The oversized tube cap, 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 cap.