Cottle Neivert Retractor is a surgical instrument that is made from stainless steel. It is a high quality plastic surgery retractor available in various grades and specifications. Cottle Neivert Medical Instrument has two hooks made in U-shape that goes down straight and then again widens and flatten with half a body having brittle surface and the other half is smooth. It has a deep curved ending at the lower end. Apart from the brittle part, the entire instrument has smooth finishing.