Caplugs Evergreen Centrifuge Tube Boxes are designed to facilitate storage of biological specimens at very affordable prices. In addition to being used as an organizer box, these boxes can also be used as a processing rack.Each box consists of three components: a heavy-duty brightly colored deck, a transparent top and a transparent bottom locked to the deck componentThe transparency of the top and bottom allows for easy viewing of the contentsEach box has two cutoffs at two corners for identifying the first row of tubesBoxes can be refrigerated. The working temperature range is between -5°C to +125°CDistinct numbering system makes retrieval easyThe 15 mL box has 36 positionsCan be used with most commonly used 15 mL centrifuge tubes, 15 mL transport vials, 17 × 100 mm culture tubes with caps or some equivalent size tubesThe 20 mL, 30 mL and 50 mL boxes have 16 positionsCan be used to store either the freestanding or the conical