SMARTMAX - Magnetic Discovery Building toy Magnetic Discovery - from a very young age! SMARTMAX magnetic balls and bars allow kids to explore the fascinating world of magnetism in a safe way. Kids can explore magnetism and gravity, whilst learning about shapes and colours and developing spatial perception as they build 2D and 3D shapes and structures. The giant SMARTMAX pieces are an ideal toy for young children. The attraction and repulsion of magnets will amazing and fascinate as they build and play. Older children will maximise their fun, building towers, bridges and other super-sized constructions. SmartMax magnets have the correct strength for their purpose and are made out of the highest quality material that can be found. These magnets can carry up to 60 times their own weight. SMARTMAX bars have different colours as a code. Larger bars have stronger magnets than smaller ones. The 6 piece set contains 6 circle bars. Extension kits of bars and balls are available separately.