This option replaces the standard brass saddles (nickel plated or natural brass on nickel bridges, gold plated on gold bridges, depending upon the bridge you are ordering) for the wound E-A-D strings with TITANIUM saddles. Using titanium gets rids of the muddiness that can sometimes occur on the lower strings. Combined with the warmth of traditional brass saddles for the plain strings, the HYBRIDge™ Option creates a more balanced, focused tone for your guitar! Photo shows HYBRIDge™ option on a #3033 Tone-Lock™ Bridge.