Smooth surface: Less friction , Consistent performance, frictionless insertion reduce vessel trauma and pain, Needle Tip: Better sharpness in the tip ,Lesser insertion force required to introduce the needle. Better Metal surface: Flaw less surface of cannula made of SS304v lesser insertion force required. Thin Wall: Better Inner diameter helps to get better Inner diameter of cannula provides more space Medical grade material (Bio compatible) From Metal to coating everything is medical grade. Polymer coating Polymer coated cannula not available in leading brand it helps in Smoother penetration. Price factor Better than various brands available with reliable quality Cost efficient for Hospital and end user (Patient).