Our ResoMax bridges serve as a drop in replacement for any 4mm or 6mm posts already mounted on your guitar, making for an easy instillation.  Already loaded with our String Saver saddles this will really save you the hassle of fiddling with tiny springs and screws to find that perfect fit.  If you are building a guitar of your own, all ResoMax bridges and Tailpieces are supplied with bridge posts so you have everything you need.