1)the uniquely sharpened facetion simpliifies penetration of tissue. In compairison with other common needles, painful trauma is considerablely reduced.
2)the special design of rbber protection jacket reduces the contanination risk in that the distal end of the needle is immediately covered and protected from following removal of the blood.
3)The specially sharpened point results in minimal tissue damage and thromboplastin seepage.
4)The needle coating ensures smooth and gentle penetration when the needle is pierced into the patient vein.

21G, 22G, 23G