These submersible racks are molded of a special blend of autoclavable polypropylene. They will sink in a water bath and maintain their stability even in agitated water. No-Wire™ racks are also perfect for use outside the water bath, and meet the exacting needs of daily usage in the lab. Supplied in numerous hole sizes, the racks are available in three colors for safety and identification in the lab. Each rack features end plates for labeling as well as numbered and lettered rows for tube identification. Interlocking feet allow stacking of racks for storage. The grid form base has holes 2.16mm (0.085") square. Assembly takes only seconds with fold up sides and end bars that lock into rack tops. Outside dimensions are all the same at 246 x 104 x 64mm high (9.7" x 4.1"x 2.5").