1/2 oz. Clear Boston Round Glass Bottle, 18mm 18-400 Black Child Resistant Calibrated Dropper

1/2 fl. oz. (15 ml) clear glass boston round dropper bottle, 18 mm (18-400) neck finish, packaged with a calibrated black child resistant polypropylene (PP) plastic dropper and 66 mm glass pipette. The calibrated markings on the pipette allow for exact measurements making this an efficient option. Boston rounds have a rounded shoulder and rounded base, making them popular in personal care packaging but also appropriate for applications in other industries. The dropper has a glass tube and rubber bulb ideal for dispensing essential oils, skincare and chemical products. Products containing ethyl alcohol or pure essential oils may remove the printed graduation marks due to the liquid's corrosivity. Please test this dropper for compatibility with your product. Specific water-based calibration tests are conducted to meet standard measurements. As a result, this bulb dispenses up to 0.75ml of water-based product at a time.