The Battle Set: Kai vs. Skulkin (71730) is suitable for letting children engage in the ultimate showdown between Kai and Skulkin. This ninja toy includes a cool action top and a small temple made of LEGO bricks to inspire children to numerous exciting role-playing games. The set offers kids imaginative play experiences with two minifigures, a Kai and a Legacy Skulkin from seasons 1 and 2 of the LEGO Ninjago TV series. 4 included red weapons promise additional action. Suitable building toy for creative children. The LEGO Ninjago Battle Set - Kai vs. Skulkin (71730) lets kids engage in action-packed duels between their hero Kai and the evil Skulkin. In addition to a detailed temple made of LEGO bricks, there's also a cool action spinning top that lets Kai whirl away to knock Skulkin down. This 61-piece playset offers kids a great building experience and is a perfect little treat that they won't want to put down.