Team up with Kai, Zane, dragon form Jay and Euphrasia to defend their tree house hideout. Be on alert for an attack in the Whispering Woods from the Acid Monster and the Loyalist. Swing into action on a vine rope or stop them with a secret trap that releases a rock and a bridge that spins around. Afterward, jump into Zane’s helicopter or Kai’s ninja motorcycle to deliver the knockout blow! • FIGHTING TOYS FOR KIDS – The Ninja Vehicle Tree House Battle (71857) building toy lets boys and girls ages 7 and up recreate battle scenes from season 4 of the NINJAGO® Dragons Rising TV show• NINJA TREE HOUSE – 3-story tree house features a workshop, tearoom, terrace, trap that releases a rock, rotating bridge, stud shooter and swinging vine rope• 2 NINJA TOY VEHICLES – Ninja motorcycle toy has moving wheels, a saddle-cockpit for a minifigure and 2 stud shooters, and the helicopter toy has anopening cockpit and rotating blades• 6 NINJAGO® MINIFIGURES – This LEGO® NINJAGO battle toy comes with ninja Kai, Zane, dragon form Jay and Euphrasia for good vs. evil battles against the villainous Acid Monster and Loyalist• GIFT IDEA FOR KIDS –NINJAGO® playset comes packed with a 3-story tree house, helicopter toy and motorcycle toy and makes a ninja gift for kids with a passion for fantasy and imagination toys• A FUN WAY TO BUILD – Let the LEGO® Builder app guide kids on an intuitive buildi ng adventure, where they can save sets, track progress and zoom in and rotate models in 3D while they build• A UNIVERSE OF LEGO® NINJAGO® SETS – This extensive collection of kids’ toys lets ninja fans and children escape into an immersive fantasy world for imaginative play with their ninja heroes• DIMENSIONS – This 642-piece NINJAGO® toy features a tree house standing over 9 in. (22 cm) high, 10 in. (26 cm) wide and 6 in. (15 cm) deep