The B-D MS02 3-Way Stopcock is a surgical instrument made of stainless steel plated brass, designed for precise and secure connection through its Luer lock mechanism. This stopcock, manufactured by Becton Dickinson, is a reliable and high-quality product in the field of healthcare and laboratory equipment. Its three-way design allows for easy adjustment and control during surgical procedures, making it a valuable addition to any medical facility or laboratory setting.PLEASE READ. An attachment is needed to make it a Luer Lock