Graduated: the outer wall of the plastic pipettes is engraved with a graduated 3ml, easy to read the volume, clear and convenient for you to absorb the right amount of liquid, helpful to measure your oil, laboratory liquidHow to Use: you can hold the droppers for essential oils and push the top of the droppers to aspirate the liquid you want; When you are working with the microscope, you can loosen the top of the pipettes and put the liquid on the containerPackage and Size: you will receive a total of 1000 pieces of small pipettes, 100 per pack, 10 packs in total; They have a capacity of about 3ml and the size of about 6.18 inches/ 15.7 cm; Available for abstraction painting, feeding small pets, measurement and transfer essential oils, nail polish removal agents and other beauty products, convenient in daily lifeEasily Applied: soft, flexible and easy to use, these plastic droppers pipettes can save you time when mixing spices without cross contamination; Just squeeze the bulb of pipettes to expel the inner air as much as possible, so that the essential oil or liquid can be easily into the bulb; Fill up to 3ml and keep the liquid in the pipettesReliable Material: made of quality plastic, these disposable pipettes are safe and sturdy, durable and reliable, very appropriate for laboratory, test chemistry, microbiology and other biology or scientific research