The Machine is composed of two components: S4 Base Machine + 4 Modules Marble Run
9 Types of Modules marble run
Assemble yourself.
Accessories included: Motor, DC Adapter , belts and pulleys, electrical wires, steel shafts, marbles, cog & Screws, brass barriers (U shaped), switch, instructions (pdf file) and everything you need to build this machines. Not include Glue.