Belart, RACK FOR 21 x 50ml S/Cap Centrifuge Tubes,

Assembly takes only seconds with fold up sides and end bars that lock into rack tops. Great alternative to wire racks, stackable  Available for 6 standard tube diameters  Available in 3 colors  Dimensions: 246mm x 104mm x 64mm high (9.7' x 4.1' x 2.5')  Autoclavable at 121?C (250?F) holds tubes: 30mm places: 21 rows: 3 x 7