The Fold and Snap Test Tube Rack is easy to assemble, simply fold and snap together. The rack is made out of durable polypropylene * Polypropylene racks ship flat in one piece * Stable design can be used in water baths * Open design allows samples to be incubated at the same temperature * Color code for easy identification SPECIFICATIONS: * Autoclavable: True * Color: Red * Dimensions (L x W x H): 9.8 x 4.2 x 2.8 in (24.9 x 10.8 x 7.2 cm) * Material: Polypropylene * No. of Wells: 40 * Quantity: 1 Each * Tubes: 5-30 mL * Well Diameter: 20 mm