This is the easiest solution for owners who want the “vintage” look without the need to alter the guitar body in any way. Although not as sustain enhancing as our E-Sert™, the ESWKIT™ with steel posts (8MM base/4MM stud), is a huge improvement over the stock bridge posts/thumbwheels and will easily allow you to the use our ABRM or Tone-Lock™ bridges. A simple “remove and replace” solution! Comes with one pair STEEL studs and integrated machined brass thumbwheels (gloss nickel, aged nickel, gloss gold or aged gold).