Turns Itself Off Useless Box Leave Me Alone Machine Fully Assembled Black Color by JTK Fully assembled - save yourself the trouble of putting the Useless Box Kit together. Turn the useless box on, and it turns itself off. Material : Acrylic panels black color (covered by protective film which can be peeled off). Requires 2 AA Batteries (not included). Spare screws and nuts included. Unscrew side panel to put batteries in. Dimensions: Approx. 14x8x6cm; Weight: Approx. 200g.