Take your Work Sharp Precision Adjust Sharpener to the next level and get even higher performance with this Upgrade Kit! For edge enthusiasts who want the most features to create the sharpest edge possible. The upgrade kit includes a coarse Tri-Brasive® assembly with 220, 320 and 400 grit diamond plates to quickly restore a sharp edge, a fine Tri-Brasive® assembly with 600 and 800 grit diamond plates and a fine ceramic stone to hone to an incredibly keen edge on any knife. The Leather Strop refines and polishes your knife to a scary sharp edge; while the ceramic rod on the back of the strop hones serrations. Carry case and Tri-Brasive® storage rack keep the abrasives and your sharpener organized and ready for use wherever your adventure takes you. From repair work to reprofiling your favorite EDC to stropping a mirror polish onto any edge – this upgrade kit provides the pinnacle of edge performance. What's In The Box: