Retractor of the penis is inserted laterally. The Luxury model includes front three-point seat belts with emergency locking retractor (ELR). All Vigors were also equipped with ELR (Emergency Locking Retractor) seatbelts. The surgery was successful in removing the cyst; the smaller retractor tube minimized resection injury. After the rotation is complete, a "retractor" pushes the protruding bars back into place. The paired pedal protractor and retractor muscles operate the animal's foot. The most important instrument for this technique is the vein retractor or phlebectomy hook. The lophophore retractor is the muscle which controls the movement of the lophophore. The digestive tract of sipunculans starts with the esophagus, located between the introvert retractor muscles. The digits are placed under maximal extension tension using a firm lead hand retractor. This pattern of retractor muscles points to an elephantine locomotion, consistent with columnar posture. It also acts as the vaginal wall retractor. A retractor span lets large vessels pass. They do not have introvert or retractor muscles. If the end was broad, it would be called a retractor.