Feature: They are blunt end dispensing needles (not sharp end) and are usually used for gluing the electronic components, jewelry or filling the ink, e-cigarette liquid /clay etc. They are unsterile and are not for the purpose of hypodermic injection. Material:Stainless Steel and Plastic Color: Green and Silver Standard: 18Ga Needle length: 13mm / 0.5 " Full length: 30mm Inner diameter: 0.84mm Outer diameter: 1.27mm Dimension:30 x 7.7mm/1.18 x 0.3"(L x Dia) Package Include: 100 x Blunt Dispensing Needles Syringe Needle They are blunt end dispensing needles (not sharp end) and are usually used for gluing the electronic components, jewelry or filling the ink, e-cigarette liquid /clay etc. They are unsterile and are not for the purpose of hypodermic injection. Material:Stainless Steel and Plastic Color: Green and Silver Needle length: 13mm / 0.5 "