GL18 White Dropper Pipette — Black TPE Bulb, 0.7ml, 57mm Curved Ball Tip Glass Pipette

The GL18WBB0.7P-57 is a complete dropper pipette assembly comprising three components in a single unit: a white PP hole cap sized for the GL18 neck standard, a black TPE (thermoplastic elastomer) rubber bulb with a 0.7ml dose volume, and a 57mm curved ball tip glass pipette. Unlike integrated dropper inserts — which are passive devices allowing liquid to flow by gravity or tilt — a dropper pipette is an active dispensing assembly: the user squeezes the black TPE bulb to expel air, submerges the curved ball tip into the liquid, releases the bulb to draw liquid up into the pipette by suction, then deposits it precisely onto the target area. This active draw-and-release mechanism makes dropper pipettes particularly well suited to targeted, clean application of cosmetic serums, facial oils, CBD preparations, and oral liquid formulations where the user needs to transfer a small, controlled quantity of liquid to a specific location rather than counting drops from an inverted bottle.

The curved ball tip glass pipette is 57mm in length — appropriate for smaller GL18 bottle volumes where the pipette reaches the base of the bottle when assembled. Buyers specifying this assembly for larger GL18 formats — particularly 50ml and 100ml — should confirm that the assembled pipette length is sufficient to reach the bottle base before committing to production. The TPE bulb offers broad compatibility with aqueous and mild liquid formulations; it is not recommended for high-concentration essential oils, aggressive solvents, or high-alcohol preparations where NBR (nitrile) or halogenated butyl bulb materials provide superior chemical resistance. The white PP hole cap fits the GL18 neck standard (also known as NW18 or DIN168), which maintains a consistent inner bore diameter of 10.65mm ± 0.15mm across all GL18 bottle volumes. Contact BlueSky to confirm stock availability, MOQ, and formulation compatibility before specifying.