Marble Machine 8x6x5″ No.4
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The balls go through rings which are the track spacers. The machine has a switch that divides the balls into two tracks with features like a flat spiral, zigzag, balls on track, many twisty turns and a helical spiral. It’s made from copper, wires are joined with soldering. Natural-looking beech wood base. Electrical components are engraved at the bottom. The speed is adjustable.
The machine is covered and protected by an acrylic box.
Size: 200x160x130 mm. Approximate: 8x6x5 inches.
It has 12 mm transparent glass marbles.