* Wells on either side are coded in the standard microtiter format. This rack also features writing areas for sample identification.

* The conical shaped wells keep the tubes centred and upright. Precise spacing of the wells allow all 96 to be used at the same time.

* Racks and covers are manufactured of polypropylene material, are autoclavable, and can withstand ultra low freezer temperatures.

* The clear cover easily snaps on and features a recessed area to allow for secure stacking of racks one on top of the other. (Accommodates the extra height of screw cap tubes.)

The wide variety of colours offers a simple and convenient way to colour code an experiment, colour code a lab or designate a specific colour(s) for hazardous experiments.