Get ready for an epic adventure with the LEGO NINJAGO Kai Fighter set (71704). This set includes 513 pieces and is perfect for children aged 9-11 who are interested in ninjas. The set features Kai, the protagonist from the NINJAGO series, and his fighter jet, which is perfect for imaginative play. With this set, you can create your own adventures and engage in imaginative play, making it a great addition to any LEGO collection. The Kai Fighter set is part of the LEGO NINJAGO series and is perfect for children who love to build and play.