Terumo Syringes without Needles 50 mL Luer Lock Syringe Box/20Key Features of Terumo 50mL Luer Lock Syringes Secure Luer Lock Tip: The threaded Luer Lock mechanism holds catheters or needles firmly in place, preventing accidental disconnections or leaks, even under pressure. Optimal Visibility: Features an ultra clear barrel with bold, black scale markings that facilitate easy, accurate, and rapid measurement of medication. Smooth Plunger Action: The plunger is specially designed for smooth, consistent movement,