Precision applicator makes hobby crafts easy. Excellent for dispensing accurate measurements of fluids including: epoxies, inks, solvents, adhesives, oils, solder paste, vape, or e-cig refill. Luer lock design prevents needle from coming off during application. Stainless steel cannula with blue polypropylene hub. These are not sharp, are not sterile, and are not for the purpose of hypodermic injection.