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71720 Fire Stone Mech is a Ninjago set that was released on August 24, 2020 under the Master of the Mountain subtheme. Description This is a description taken from Please do not modify it. (visit this item’s product page)

This LEGO® NINJAGO® Fire Stone Mech (71720) with 5 minifigures is perfect for fans of ninja toys and building sets for kids. Youngsters will love putting together the fire ninja mech and figures to play out action-packed scenes from the NINJAGO TV series.

Amazing LEGO fun toys This stunning and detailed LEGO mech set offers kids a world of possibilities so they can enjoy hours of engrossing action. They can place two ninjas in the cockpit of the highly posable mech as it storms into battle against enemies Murt and Moe, smashing its way out from the bowels of Shintaro Mountain.

The perfect building toys for kids LEGO NINJAGO mech sets offer youngsters a gateway into a world of fantasy fun where they can indulge in creative play as they role-play stories with buildable figures. Your little ninja will be enthralled as they play with a range of action toys, including cars, jets, dragons and more.

  • Super-cool LEGO® NINJAGO® Fire Stone Mech (71720) and 5 minifigures for kids to recreate action from the NINJAGO TV series. This makes the perfect role-play toy for kids who want to pretend to be their ninja heroes.
  • This ninja playset includes a NINJAGO® Fire Stone mech and 5 minifigures: Hero Kai, Hero Nya, Hero Cole, Moe and Murt. Youngsters can have fun playing out their own NINJAGO brick adventures from the Dungeons of Shintaro.
  • This awesome toy provides kids with endless play possibilities. The Fire Stone ninja mech boasts highly posable legs and arms, fits up to 2 minifigures in its cockpit, and can fire studs from its shooters.
  • This 968-piece LEGO® NINJAGO® mech set provides a fun building experience for boys and girls aged 9+. New for June 2020, this action toy is the perfect way for little ninjas to explore their creativity.
  • This NINJAGO® building set for kids is perfect for play at home or for fun on the go. Ninjas can enjoy adventures anywhere! The fire ninja mech measure overs 10” (27cm) high, 7” (19cm) long and 11” (29cm) wide.
  • No batteries are required for this fun toy set – it is ready for breathtaking NINJAGO® action as soon as it is built. Kids need only the power of their imaginations.
  • A fun and rewarding building experience is on offer to young LEGO® fans when they assemble this LEGO NINJAGO® mech, accompanied all the way by easy-to-follow instructions.
  • LEGO® NINJAGO® building toys for kids fire up young, curious minds and allow themto escape into a unique world of fantasy action where they can join forces with their ninja heroes for awesome NINJAGO brick adventures.
  • The LEGO® building bricks in this NINJAGO® mech meet the highest industry standards, ensuring they are always consistent, compatible and pull apart easily every time.
  • The LEGO® building bricks used for this LEGO mech set meet the highest global safety and quality standards. You are always in safe hands when you choose LEGO playsets as a gift for your children.


In "Masters Never Quit", the Stone Mech is discovered inside the Heart of the Mountain by Cole, Wu, Vania, and the Upply. Wu notes that the mech, entirely made out of stone, is unlike any mech he has ever encountered before, and the group speculates that it may have been used to construct the temple. Plundar examines the mech but finds no means of working it, though he does discover some equipment that Cole dons for the duration of the battles with the Skull Sorcerer.

In "The Ascent", Cole hits upon the idea of attaching wheels from a mine cart to the mech's feet so that the mech can be used to push two more mine carts carrying his friends up the mine cart tracks and back to Shintaro proper. He discovers that the mech is powered by his elemental energy, and after struggling briefly to adjust to the wheeled configuration begins using it to travel up the tracks. He and his friends are attacked by the Lava Monster that has been pursuing them for some time, but after discovering the mech's sword Cole is able to best the creature. He also discovers that the mech is flight capable and saves Wu and the Upply from magma, but loses control of the mech due to it being half-covered in magma (thus approximating the appearance of the set version of the mech). Fortunately, the mech is able to reach the royal gardens of Shintaro before shutting down, apparently for good.

Minifigures Included


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