Manufacturer: Easy Touch Easy Touch Pen Needle 31 Gauge 5/16 are developed to offer the user maximum comfort. These triple-bevel needles are cut to a very sharp point. Electro-polished to get rid of microscopic burrs, and coated with film for a smoother injection experience. Features: -Compatible with all type insulin pen delivery devices. -Film coated for maximum comfort. -EasyTouch pen needles are latex-free. -Easy to identify gauge, CC and needle length. -Lines up perfectly for precise readings. -Thin wall cannulas for an easier flow. -Needles are made out of surgical steel.