Tecti presents a turning point in building toys. With Tecti , people can create over 40 kinetic structures out of interlocking, movable cubes. Each cubotic structure shifts into different shapes with tectonic-like movement thanks to Tecti's patented built-in hinges. Love a certain shape? Lock your creation in place with a keystone, a single cube to insert into your structure to prevent it from moving. Or keep exploring what you can create next.