Bd 3Ml Luer-Lok Syringe/25G X 1" is a combination of a needle and a syringe used in healthcare centers and clinic settings. It is usually used either to administer liquid drugs or extraction of blood or other fluids from the body. It has a beveled tip that is usually detachable.
The barrel is clear with scale markings that helps to increase the accuracy of measurement when administering drugs to a patient. It is not only used by medical practitioners, but patients can be taught how to use them in case of regular drug injection.
If you"re not sure about its usage, consider reading the leaflet provided by the manufacturer.