set VWR pipet Pipette 100-1000ul single channel set 2-20 tip ejector

set of two working VWR pipet single channel pipets. The pipets are: 100-1000ul and 2-20ul. with tip ejectors. The pipettors sold have been used only with non-radioactive and non-biohazardous materials. Also. all pipettors have been tested to work properly- I have measured the aliquottes on a Mettler scale. If you are not satisfied. you can return the product within 30 days for a full refund excluding shipping expenses.Lot con5/5blbox