Description: Interlocks on each side. Polypropylene racks connect on either side. Side ribbing and finger slots for easy pick-up. Each tier holds different size tubes. Lower level holds 24 200ul tubes; Middle tier holds 14 500ul tubes; Top tier holds 12 1.5ml tubes. Autoclavable.

Dimensions: 6½ x 5 7/8 x 2 3/8" (16.5 x 12 x 6 cm). 6/pack.