Butterfly Needle Set For Single Use With Luer Adapter

A butterfly needle is a shorter needle with a thinner gauge, ranging from sizes 18 to 27. When measuring gauges, the higher the number, the thinner the diameter, making butterfly needles one of the thinnest needles for phlebotomists to use. Typically, 21 or 23 gauge are used for blood draws. Butterfly needles are also known as a winged transfusion set or a scalp vein for its ‘two wings’. Butterflies are not the standard needle for blood sample collection, but they are often utilized for patients with shallow or thin veins. The tubes of a butterfly needle vary from 8 to 15 inches. For most needle sets, shorter tubes are used for blood draws, whereas longer tubes are used for intravenous (IV) therapy.