Bench top sized cooler holds twelve 12-13mm diameter tubes including centrifuge and cryo vials at a temperature below 0°C for approximately 3 hours. The polycarbonate cooler body is filled with a non-toxic gel, which cannot contact tubes ensuring that markings and labels on tubes are safe. Coolers are stackable and have rubber feet to prevent sliding on the lab bench. Tubes up to 125mm tall can be accommodated when the clear polycarbonate lid is secured closed with the built in wire carrying handle. Corresponding tube positions are printed on the keyed lid and cooler. L x W x H: 19.7 x 14 x 19cm. Weight: 1.6kg.