Flip this polypropylene reversible rack to the size of tubes you need. PCR side of the rack holds 8- or 12- tube strips or individual tubes. The opposite side of the rack holds 0.5 mL tubes. Both sides of the rack have 12 wells for 1.5 mL tubes. Autoclavable. Rack measures 206 x 131 x 54 mm. Pack of 5.