Build complex three-dimensional structures, connect the gears and set it all in motion in a spectacular chain reaction! This ingenious construction system has a plastic chain that lets you transfer movement between gears that are not connected. A great way to get to know the principles of mechanics while having fun. And its all totally shatterproof and safe.
1 white board + 1 spin
1 large gear
5 medium gears
2 small gears
23 pillars
20 joints
1 chain with 25 links
8 red joints with 4-way connector
9 white connector
1 album with instructions and examples