Manufactured in translucent virgin polypropyleneTaller than most standard boxes, can take up to 53.5mm tubesFor use with vials, tubes, microtubes from 0.5 to 2ml volumeTemperature range -80°C to 135°CSuitable for use in ultra-low freezersSuitable for autoclaving (15 minutes at 121°C)Alphanumeric grid on lid for easy referenceStackable, with hinged lidAll Black boxes available for use with light sensitive samples boxes also available with self adhesive grid which attaches to the underneath of the box.