66 neodymium magnet sticks and 42 steel balls are included in this magnetic building set.

The length of the sticks is 1.06" and the diameter is 0.25". The diameter of the sphere is 0.5".

A Steel bar is molded inside the magnet sticks, which greatly increase the magnetic strength and make the stick mechanically strong. This is one of the major differences of our product comparing to other vendors'. In the following picture, you can see the magnet can hold up to 7 steel spheres.