Supermag is a unique construction system that is based on the simple concept of magnetism. The set consists of steel balls and plaster coated magnetic polarized rods. Your child can connect the rods and spheres to create structures from their imagination. The construction process is not complicated. The rods and spheres can be pulled apart with minimal effort. This is an excellent 'open-ended' play activity for children and adults of all ages. It will help teach the basic principles of geometry, magnetism and engineering. Your child can improve their fine motor and communications skills while having lots of fun.