The ICU Medical B3301 is a set of IV extension lines designed for medical use. These 7-inch lines are made with a minibore needle-free port and a luer slip slide clamp. They are latex-free, making them safe for use with patients who have latex allergies. Each set comes with 50 IV extension lines, providing a good supply for medical facilities. These lines are designed to be durable and reliable, ensuring that they can effectively deliver IV fluids or medications to patients.