Koros USA, Inc. is a designing and distributing state of the art Surgical Instrument Company. Our most popular best sellers include the Cervical Black Belt, Lumbar Super Slide & Lateral Retractors along with our Rotating Osteo Punch, Ejector Punch Rongeurs, Power Rongeurs, Freeform Pituitary Disc Rongeurs & a variety of many more fine instruments.