Pipettes features:Thumb wheel design allow for an easy one-hand operation with the pipette pump. Precise filling and dispensing provides high accuracy dispensing. Side level allows the liquid samples in the pipette pump to be dispensed rapidly. FeaturesSize: 16.00X2.20X2.20cm/6.29X0.86X0.86 inchMaterial: PlasticCapacity: 2mlThe pipette pump is made of high-quality materials, has strong acid and alkali resistance, and can be used in a variety of liquidsBy rotation of the thumb wheel draws or dispenses the liquid with precision and easeEasy operation, this pipette pump is easy to operate by one hand to depressing the side lever the entire contents can be dispensed rapidlyYou will have a good use experience because of the perfect workmanshlp of this productIt is simple in design, but it's practical to use, which will give you a good use experience.