Fastbridge.jar is a release file of the Minecraft plugin Fastbridge Trainer | Build your way really fast, made for Minecraft 1.9, 1.11, 1.8.1, 1.8, 1.12, 1.10. It was published on July 22, 2017 and is 0.1 MB in size. For the full description, screenshots and every other version, visit the Fastbridge Trainer | Build your way really fast plugin page.
How to install: Put the .jar into the plugins folder of your Paper, Spigot or Bukkit server and restart the server.