Innovative pen needles: Improved insulin delivery These modern pen needles are compatible with all standard insulin pens and utilize advanced thin wall technology. The enlarged inner diameter allows for improved insulin delivery, thus simplifying treatment and reducing adverse effects. Features and benefits The smooth, silicone-coated surface ensures gentle insertion. The needles are free of pyrogens and latex, which reduces the risk of allergic reactions. With a length of 8 mm and a thickness of 0.25 mm (31G), they are particularly comfortable to use. Important NOTE Please note that these pen needles are disposable products and must not be reused.