Little mechanics will love creating super-cool designs with the Geomag Mechanics Construction Set, with 146 pieces included.There are so many shapes to create! As well as magnetic rods and spheres, this set features brand new elements to make construction even more fun. There are 146 pieces in the box, making it even easier to get the fun started. Parents will love that this playset helps little ones develop their STEM abilities too.Contains: Geomag Mechanics 146 Piece Construction SetAge: 5 Years+Batteries: Not required