Pipettes use plastic tube to pack it for each dropper, package include 4 pieces glass droppers, 1 pieces cleaning brush. the first time you use it, you need to pull the black silicone tip up into position before you pinch it.
Note:
1. After drawing the liquid, the tip can not touch other objects, so as to avoid contamination of impurities.
2. When used, do not only use the thumb and index finger pinching, with the middle finger and ring finger together.
Note:
1. After drawing the liquid, the tip can not touch other objects, so as to avoid contamination of impurities.
2. When used, do not only use the thumb and index finger pinching, with the middle finger and ring finger together.
