6 years & up. Experience the world of Lux through the patented revolutionary snapping hinge technology. Users are able to build structures which curve, bend, move, and fold! Modeled after nature at the molecular level, Lux connects not through sticking or stacking like other building sets, but through linking pieces together. Each durable building block piece connects on all 4 sides allowing for more flexible builds to create toys where any part can move. The Lux Steam Inventor set will keep young imaginations entertained for hours while immersing them into the STEAM arts of science, technology, engineering, art, and math. The Inventor set includes multi-wheels and rubber bands to create structures utilizing a pulley and gear system. Comes in 14" clear tube with 223 pieces; 35 white trigons, 40 red squares, 130 white squares, 4 square multi-wheels, 2 trigon multi-wheels, 10 lux axles, and 2 rubber bands.