Inspire construction site adventures as kids open a mystery box to reveal the Lego Technic Mighty Machines 42233 building toy for boys and girls ages 7 years old and up. These surprise sets make a fun everyday gift idea for kids who love construction truck toys, each including a vehicle to build, collect and display. Each mystery box contains 1 vehicle toy out of 8 different construction trucks to collect, including a road roller, wheel loader, dump truck, cement truck, wrecking ball crane, mobile crane, bulldozer and an excavator. These sets give kids a great introduction to the world of Stem building toys and engineering as each one includes a moving function powered by Lego Technic pieces. Inside the box, kids will also find a collectible playing card that corresponds to their truck, featuring stats about the model on one side and a road graphic on the other. Each of the unique 8 cards can be combined to form a larger road layout, which kids can assemble as they collect sets or play with and trade cards with their friends. These surprise toys for kids make a cool treat for boys and girls who love construction site pretend play. Contains 1 buildable Lego vehicle.