Perfume Studio Calibrated Glass Straight Tip Pipette Droppers 7x89 mm - Pack of 24, No Bottles - Plus Free Perfume Sample Vial (2oz Calibrated Glass Pipette) Pack of 24 Calibrated Glass Pipettes (NO BOTTLES) - 7x89mm straight tip glass pipette - Plus Free Perfume Sample Vial Ideal for essential oil blends and other similar liquids- Accurate Measurements Use for measuring liquid formulas - Reusable and Durable Fits Boston Round Bottles with a 20/400 Closure Printed with .25, 0.5, .75 and 1.0 mL calibrations