a novel peg apparatus adapted for mounting onto various axles types . the device provides either fixed or roller action as preferred by the user . the roller action affords enhanced operating performance and safety in terms of end user satisfaction in each area of potential use . the peg includes an outer sheath made of one of a number of an industrial grade plastic which rotates around the threaded , fixed , mandrel and glides over various surfaces or , which may be locked in a static position to provide a skidding , or “ grinding ” effect .