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