About this item: 
Enough to Use: you will receive 20 pieces of 10ml droppers for liquids, 20 pieces of rubber bulbs, 2 pieces of washing brushes, and 2 pieces of glass stir rods, enough and complete to meet your daily use needs 
Proper Size: the pipettes dropper is about 7.9 inches/ 20 cm in length, the rubber cap is about 2.17 inches/ 5.5 cm in length, glass stir rod and cleaning brush are about 7.9 inches/ 20 cm in length; Please check the size before ordering 
Apply for Many Times: the glass droppers and rubber hats are removable, and the included cleaning brush can clean the inside of the dropper; Equipped with a glass stir rod, you can easily experiment with it afterward 
Precise Scale: our transfer pipettes are printed with clear reading lines, numbers 1-10 from mouth to head; Whether you are in a variety of laboratory applications, or in the chemistry classroom, a dropper, rubber bulb, and glass stir rod can meet your high precision requirements 
Good Suction Ability: you need to install the rubber hats on the top of the liquid dropper, together to provide good suction to get the right amount of liquid; The glass stir rod is applied to stir and mix your liquid evenly, they are nice for collecting and distributing