Aseemble Yourself.
Material: Natural Solid Wood, Brass and Plastic.
Accessories included: Motor, Battery holder (Adapter in option), electrical wires, steel shafts, marbles, cog & Screws, brass barriers (U shaped), switch, instructions (pdf file) and everything you need to build this machines. Not included Glue and batteries.
Complete size: 8.3 x 9 x 6.9 inches (210 x 230 x 175 mm).
Item weight: 4.4 lbs (2 kg)
Instructions: pdf file