BD® Blunt Fill and Blunt Filter needles are specifically designed to reduce the risk for needlestick injuries during medication preparation. The BD® Blunt Fill needles have female luer fittings, which mate to male luer fittings. The BD® Blunt Filter Needle has a 5-microns filter for particles such as glass and plastic fragments, for safer medication delivery. The BD® Blunt Fill and Filter needles are not for skin injections.