Globe Scientific 3476 ESR Transfer Pipettes, Pack of 500

Calibration is certified for accuracy Aerosol barrier filter plug Reverse graduations Negative graduations Fits all major brands of pipette controllersYou may also like Globe Scientific 138080-S01 Transfer Pipet, General Purpose, Standard, LDPE, 7.0mL Capacity, Sterile, Individually Wrapped, 155mm Length, Pack of 500.