Introducing the new Viking Butt Extension, a collaboration between Viking and Tiger Products. With just a few simple turns, you can easily add or remove the 11-inch or 6 - inch extension by installing the adapter and bumper into the butt of the cue. Made in America from Aircraft Aluminum, this lightweight extension weighs less than 5 ounces. The adapter takes up minimal space, preserving the balance of the Viking Interchangeable Weight System. The complete kit includes the extension, installation wrench, and cue adapter (Viking or Valhalla) with bumper.