This tapered glass dropper has a 1.5 ml capacity and features a rubber bulb with a threaded plastic screw cap for secure closure. The glass tube tapers from a 0.25-inch diameter down to a 0.1-inch opening, providing controlled, precise dispensing of small liquid volumes. The dropper has a total length of 3.75 inches, with a glass tube length of 2.75 inches and a screw cap diameter of 0.75 inches. The threaded cap allows the dropper to be sealed for storage or transport, preventing leakage and contamination.