Polypropylene tubes and caps Graduated with a white writing area to obviate labelling Withstands centrifugal forces up to 13,000 g Autoclavable at 121 °C for 15 minutes Horizontal TabsProduct Codes Product: 2.0 mL Screw Cap Micro-centrifuge Tubes Cat. No.: L.BMD.TMS-2ML-1000 Pack Size: 1000/pack