The B Braun 333165 is a spinal/epidural tray featuring a Tuohy needle. The needle measures 17G x 3.5″, making it suitable for a variety of medical procedures. This product is sold in cases of 10, ensuring you have ample supply for your medical needs. The tray is designed to organize and maintain sterility of the equipment, providing a safe and efficient solution for spinal and epidural procedures.