Double-sided, compact polypropylene rack is perfect for use on the benchtop or in the freezer. One side accommodates 0.5ml microcentrifuge tubes while the opposite side holds 1.5ml to 2.0ml microcentrifuge tubes. 96 wells on each side keep tubes upright in an 8 x 12 array. Alphanumeric index permits easy tube identification and a matte side panel accepts tape or direct labeling. Molded in handles provide a secure grip for transport. Rack can be used for freezer storage down to -80�C (-112�F) and can be autoclaved at 121�C (250�F). Overall dimensions: 21.3 x 11.4 x 2.7cmH (8? x 4� x 1�/??�). Optional cover fits either side, protects samples and is translucent for easy viewing. Cover overall dimensions: 20.7 x 11.8 x 2.9cmH (8? x 4? x 1?�).