Bel-Art F18876-0000 Microcentrifuge Floating Rack; 1.5ml， 24 Places， Polypropylene (Pack of 4)</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Tubes are held snugly in each well and only released when the rack is pressed down upon a bench top</li><li>Rugged and economical; dimensions: 4-11/16" x 3-1/16"</li><li>Steam autoclavable at 121 degree C (250 degree F)</li><li>Incubate up to twenty-four 1.5ml microcentrifuge tubes in a water bath</li><li>Compact size does not crowd water bath; hole diameter: 10.8mm; fits tubes: 1.5ml</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/31rYVyAaE8L.jpg' noproxy></br>