1.I.V. Cannula, With Injection Valve 2 I.V. Cannula, Butterfly Model(With Wings) 3 I.V. Cannula, Pen-shape Model(Pen-like) Product detals: 1.I.V. Cannula, With Injection Valve2 I.V. Cannula, Butterfly Model(With Wings)3 I.V. Cannula, Pen-shape Model(Pen-like) Gauge: 14G, 16G, 17G, 18G, 20G, 22G, 24G