· 1cc 31G Syringes:1cc syringes，31G 1/4" 6mm，five-faceted cutting new production process and electro-polished to remove burrs, building the highest quality syringe needles on the market.· Sterile, Environmentally Friendly Material:Each 31Ga 1cc 1/4" syringes come sterility individually package.Pack of 100.· Easy to Use: Smooth plunger for easy one-hand operation, leak-proof design, plunger is not easy to fall off.· Accurate Measurement: Clear and accurate markings on the barrel of the syringe make it simple to draw the correct dosage every time.· NOTE : Not for professional medical use, only for industrial, science lab and experiments using or as home tools.