The Smiths Medical 442511 is a non-radiopaque IV catheter designed for safe and efficient venous access. It is 18G in size and measures 1¼” in length. The catheter is colored green for easy identification. It is sold in boxes of 50, with 4 boxes per case. This product is intended for single-use and should be disposed of after use. Please note that this catheter is non-radiopaque, meaning it does not appear on X-rays or other radiographic images.