Item no. 19566.xx** Holds 40 (4 x 10) tubes with max. Ø20 mm. Made of polypropylene. Autoclavable. Specially designed to ensure that all test tubes will be incubated at the same temperature. Alphanumeric identification. Dimensions: 246.5 x 104 x 70 mm. Rack is supplied dismantled. Easy to assemble.