Fine Needle Aspiration (FNA) needles, known as ultrasound-guided biopsy needles, are used for tissue sampling under the guidance of endosonography. These needles serve both diagnostic and therapeutic purposes, providing essential clinical information to aid physicians in patient treatment decisions. They are available in three sizes: 19, 22, and 25. Constructed from a cobalt chromium alloy, these needles offer excellent flexibility and superior tissue penetration capabilities. The needle tip retains its shape after multiple tissue passes, minimizing the risk of damage to the working channel. The design allows for fast and secure attachment to the scope, ensuring efficient and reliable procedures.