GlucoRX FinePoint Pen Needles are electropolished with high grade siliconization. These 5 bevel needles are a universal fit on all insulin pen delivery devices. Gluco Rx Fine Point Pen Needles 6mm/31g are a universal fit on all insulin pen delivery devices. This includes Eli Lilly, Novo Nordisk AS, Becton Dickinson, Owen Mumford, and Sanofi. These needles are electropolished with a high grade of siliconization to make injecting easier. Key Features of Gluco Rx Fine Point Pen Needles Universal fit Compatible with all insulin delivery devices Electropolished needle with high grade siliconization Range of sizes available 5 bevel needle (except 10mm and 12mm)