The MONOJECT Illinois Needle is an adjustable-length needle specially designed for obtaining a marrow fluid aspirant. This needle features a sharp, rigid steel needle and an ergonomic handle design. In addition, a locking nut allows you to control insertion depth for safe sternal or iliac aspiration. The 16-gauge needle size also makes the unit appropriate for use in pediatric intraosseous infusion procedures. Available as a single needle. Also packaged in sterile tray configurations designed to meet your individual needs.