• Made of polypropylene• PCR® side of the tube rack holds 8 or 12 x 0.2 mL tube strips or individual tubes• Reverse side holds 0.5 mL tubes• Both sides of the tube rack have 12 wells for 1.5 mL tubes• Tubes: 0.2 mLWells: 168• Well Dia: 5.5 mm• Tubes: 0.5 mLWells: 40• Well Dia: 7.6 mm• Tubes: 1.5/2.0 mL• Wells: 12• Well Dia: 11.4 mm• Autoclavable