Bel-Art F18794-0002 Poxygrid Centrifuge Tube Rack; 50ml, 36 Places, 9 x 8 x 3&frac12; in., Blue Wire rack with 36 wells holds 50mL plastic centrifuge tubes for storage and processing Each well is 30mm square Made of epoxy-coated steel wire to resist chemicals and corrosion Steam autoclavable at 121 degrees C (250 degrees F) Overall size is 9 x 8-7/8 x 3-1/2 inches (L x W x H)