Full age range, high compatibility, unlimited expansion, scenario based building blocks. Adopting the standard 8mm convex point+3.2mm cross axis universal specification, compatible with mainstream brands such as Enlightenment. Comes with "bridge components" and "corner components" specially designed for the splicing of old and new systems, solving the problems of height and space differences. Basic bricks, sloping surfaces, curved surfaces, doors and windows, railings, printed bricks (road patterns, brick patterns). Gears, telescopic shafts, and rubber band connectors can be upgraded to power models such as cranes and carousels. Theme accessories include dolls for 12 professions, including urban workers, firefighters, astronauts, and dinosaur trainers; Vehicle: detachable tires, transparent cockpit, LED light tiles (optional).