Boys and girls aged 6+ will love building this LEGO® NINJAGO® Nya vs. Mutation Monster Spinner battle set (71849) and recreating scenes from season 4 of NINJAGO: Rise of the Dragons. Once built, kids press the launcher button to rapidly spin the spinner and watch the 2 elemental power pieces fly out when it hits the target. This small LEGO set with great value includes 2 minifigures: Nya with a sword accessory and the evil Mutation Monster, which can be placed inside the spinner. Kids will enjoy hours of good vs. evil battles with these NINJAGO characters. The LEGO NINJAGO adventure building set and toy line includes detailed mechs, vehicles, dragons and temples for fans to stage incredible ninja action. Kids can build each set with confidence using the LEGO Builder app – zooming, rotating in 3D and tracking progress with easy-to-follow digital instructions. The set contains 49 pieces.