Six different notched brass bars interlock in one specific way to create a unified "jack" shape. It is exactingly milled, and weighs just over one pound. A desk object, a paperweight, and a true distraction — but be warned, if you take it apart, you might not be able to figure out how to put it back together… Specifications * Solid brass * 1/2" diameter pieces * Bull-nose ends, lathe-cut * 3" x 3" x 3" * 1.1 lbs