Features: McKesson Hypodermic Syringe 3 cc 0.5 mL Graduations Luer Lock Tip Plunger slide characteristics. Transparent barrel with clear graduations to allow exact dosing of fluid. Secure backstop to prevent accidental plunger withdrawal. Double seal stopper to help prevent medication leakage. Large, stable finger grips. Bold, precise scale markings. Sterile Single use only Non-Toxic, Non-Pyrogenic Not made with natural rubber latex.