Each module is interlocked and adjustable with just a twist allowing you to work with multiple sized tubes in the same rack * Suitable for variety of culture, centrifuge, micro-centrifuge, round, flat or conical bottomed tubes * Two versions to accommodate small and large tube sizes SPECIFICATIONS: * Autoclavable: True * Color: Yellow * Color: Green * Color: Blue * Color: Purple * Dimensions (L x W x H): 8.8 x 4.3 x 4.3 in (22.4 x 11 x 11 cm) * Material: Polypropylene * No. of Wells: 2, 8, 6, 10 * Quantity: 1 Each * Tubes: 50 mL, 10-15 mL, 15-20 mL, 10-13 mL * Well Diameter: 29, 20, 16, 13.5 mm