Check the listing for details. Graduated Dropper Pipettes Kit, 4pcs 0.5ml Pipette with Rubber Cap, Clear. Condition: New. Listed at 20.92 USD. Graduated Dropper Pipettes include pipettes and the rubber squeeze bulb used together. Its main use is to transfer liquids, such as essential oils, acids, solvents, etc. It is widely used in labs, teaching experiments, microbiology, etc. Its material is borosilicate glass with clear scale lines, which is very practical.SpecificationPipette Capacity: 0.5mlPipette Diameter:6.5mm/0.26 InchPipette Length: 200mm/7.9 InchMinimum Division Scale: 0.01mlMaterial: Borosilicate Glass, RubberColor: ClearPackage List: 4 x Dropper Pipettes, 4 x Rubber CapsAdvantageIt is made of borosilicate glass, which is thick and durable so that it can be used repeatedly. Moreover, the borosilicate glass material has high temperature and corrosion resistance.