Release 4.0.6 is a release file of the Minecraft mod Additional-Buildcraft-Objects, made for Minecraft 1.7.10. It was published on December 8, 2015 and is 0.3 MB in size. For the full description, screenshots and every other version, visit the Additional-Buildcraft-Objects mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.