Black Yamaha electric guitar tremolo unit. Everything in the photos is included. It's used, but in great condition with hardly any signs of wear. Floyd Rose licensed product. [Defect] The internal threads of the arm's screw are worn and loose, so it won't stay fixed unless you use something like thin tape to secure it. The arm parts are replaceable. You can find arm parts for sale used online. I will sell this to someone who understands the above. Hex wrench included as a service.