Required for dispensing the contents of Drummond MicroCaps®, the Bulb Assembly offers users a simple, yet effective dispensing experience. With a capillary inserted into the amber end of the assembly, MicroCaps® utilizes capillary action to aspirate samples. To dispense, squeeze the bulb, taking care not to cover the hole at the top of the bulb, as a lack of air flow will result in the sample being aspirated into the assembly. Order micropipettes separately.