Kids power up to fight villains with the LEGO NINJAGO Kai's Dragon Mech Battle Pack (71851) building toy for boys and girls ages 6 years old and up. Young builders prepare for epic showdowns as they build their dragon mech, complete with posable legs, large wings, claw hands and an upper body that rotates 360 degrees, plus a cockpit to place a minifigure inside. Once their build is complete, kids can recreate scenes from season 4 of the NINJAGO Dragons Rising TV show. This set includes 3 minifigures: Kai with 2 sword accessories, Sora with 2 swords and a villainous Earth Monster with claw hands, inspiring hours of pretend play good vs. evil battles. Makes a fun birthday gift or anytime present for kids who love ninja toys and action figures. The LEGO Builder app includes digital tools that make it easy for kids to save sets, track progress and zoom in and rotate models using 3D instructions. Contains 85 pieces.