DLAB DispensMate Bottle Doser 2.5-25 mL is designed for precise measuring operations. It simplifies dosing directly from a bottle or vial, eliminating the need for pipettes. The assembly consists of a plastic doser with a glass piston and a long flexible delivery tube. The tube is long enough to reach the bottom of bottles of various sizes. The device is standardized for bottle and vial necks. It is easy to use and provides accurate and reproducible results. The volume setting mechanism is securely locked, preventing leakage between uses.