This train is heading for fun and discovery with nine pieces in total, each with magnets safely embedded to allow dozens of different building possibilities. Each of the three wheel bases measures about 12 cm (about 4.5") long, and the blocks can used to create their original shapes or combined into new structures. Each wheel base has a magnet at either end so all the cars will hook up and can be moved along together. Made from sustainably-sourced hardwoods with water-based stains and lacquers. Compatible with all other Tegu magnetic toys.