Excellent slidable performance for medical staff to easily perform clinical injection. Strong graduation ink adhesive force, friction resistance, not easy to fall down. Universal fit: Conical lock fittings with 6% confirm with international standards, can be used with any product with 6% conical lock fittings. Clearly observe solution and bubbles with transparent barrel, push button of plunger with skidproof structure that easy to grip, the inner cavity of the rear end of barrel with skidproof structure to prevent the plunger from accidentally sliding. Three-piece, Two-piece Luer Slip, Luer Lock Concentric, Excentric. It can meet different needles.