SpecificationsBoys and girls ages 6 and up will love building this LEGO® NINJAGO® Nya vs. Mutation Monster Spinner (71849) battle toy and recreating scenes from season 4 of the NINJAGO Dragons Rising TV show. Once it’s built, kids push the launcher’s button to unleash the spinner toy into a quick spin and watch to see if the 2 elemental power parts fly off it when it hits its target. This great value small LEGO set comes with 2 minifigures: Nya with a glaive weapon accessory and the villainous Mutation Monster, who can ride inside the spinner toy. Kids enjoy countless hours of good vs. evil battles with these NINJAGO characters. The LEGO NINJAGO range of building sets and adventure toys includes detailed mechs, vehicles, dragons and temples so fans can role-play awesome ninja action. Kids can build each playset with confidence using the LEGO Builder app – zoom, rotate in 3D and track progress with easy-to-follow digital instructions. Set contains 49 pieces.