The Flutter Valve Needle is a stainless steel needle used for medical purpose. For administration of metabolic products from plastic and glass bottles, the needle features a hollow shape and can be easily attach to the syringe with record attachment. It can inject liquid into the body without any damage to the skin. After each use wash the needles with warm water to make it germ free. These needles are safe to use as they will not break or bend while penetrating the skin. These high quality economically priced needles are perfect for on farm use.