Ideal for sample storage, these polypropylene boxes can be used in the freezer (to -80°C) or autoclaved. The easy open lid with living hinge and positive catch keeps samples securely in place. The translucent lid is alphanumerically labeled. Boxes available for 1. 5/2. 0 mL and 0. 5 mL tubes. R7901 also holds cryovials and chromotography vials.