Medical devices and apparatus more particularly described as a set containing devices and instruments used in the surgery of the cervical section of the human spine, including, namely, individual parts that are color-coded by size blunt shades, paddle retractor blade, short teeth blades, long teeth blades, macro blunt blades, short teeth micro blunt blades, transverse retractor, longitudinal retractor, side-locking retractor, colorcoded depth gauge, twist drills, distraction screw dual drill, left and right distractors, drill guide, caliper, bone tamps, instrument case and other type of medical devices and apparatus widely used in surgery performed at hospitals and other centers of the human healing arts