The ‘ICU Medical B1907 – Extension Set Small Bore 42″Long 50/CS’ is a medical accessory designed for intravenous applications. This set features a small bore extension that measures 42 inches in length, providing ample reach for various medical procedures. It is sold in cases of 50, ensuring you have enough supplies for multiple uses. Please note that this product is intended for professional use and should be administered by trained healthcare personnel.