LEGO NINJAGO Rontu the Master Dragon Building Toy - Dragons Rising Model Building Kit for Boys & Girls, Ages 7+ - Kids Toy W/ 4 Ninja Minifigures & Dragon Figurine - Gift Idea for Birthdays - 71842 price history and forecast - LEGO 71842
LEGO NINJAGO Rontu the Master Dragon Building Toy - Dragons Rising Model Building Kit for Boys & Girls, Ages 7+ - Kids Toy W/ 4 Ninja Minifigures & Dragon Figurine - Gift Idea for Birthdays - 71842

LEGO NINJAGO Rontu the Master Dragon Building Toy - Dragons Rising Model Building Kit for Boys & Girls, Ages 7+ - Kids Toy W/ 4 Ninja Minifigures & Dragon Figurine - Gift Idea for Birthdays - 71842

Brand:
LEGO
Model Number:
71842
UPC:
673419405119
EAN:
0673419405119
ASIN:
B0DRW4XD15
Best Buy SKU:
6610825
Walmart SKU:
13939622140
Key Takeaway

Market direction turned downward today with current $39.99 representing 13.3% under standard pricing.

Third-Party Seller Summary

No price history available for Third-Party Sellers

Walmart.com Summary

Walmart.com Price History Summary
Price Type Price Date
Highest Price
$47.99
Lowest Price
$39.99
Most Recent Price
$39.99
Average Price
$46.11
First Tracked
Last Update

Price Analysis

Tracking History: We have tracked LEGO NINJAGO Rontu the Master Dragon Building Toy - Dragons Rising Model Building Kit for Boys & Girls, Ages 7+ - Kids Toy W/ 4 Ninja Minifigures & Dragon Figurine - Gift Idea for Birthdays - 71842 since 4/3/2026. The most recent price update was on Jun 24, 2026.

Price Range: Over the past 90 days, the price has ranged from $39.99 (lowest on 6/24/2026) to $47.99 (highest on 4/3/2026). The average price during this period is $46.11.

Current Trend: Walmart.com prices have ranged from $39.99 (Jun 24) to $47.99 (May 23) over the past 90 days. Current price is 13.3% below the 90-day average of $46.11.

Customer Insights: Rated 4.71/5 from 38 reviews.

Customer Reviews

38 reviews

Customer Reviews

4.7
Based on 38 reviews
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Showing 10 of 38 reviews

5.0 out of 5 stars - Perfect for the LEGO-Obsessed

kellys509_1917 January 28, 2026

[This review was collected as part of a promotion.] I gave this to my 11-year-old niece, and it was an absolute hit! She is a true LEGO fanatic—she lives, breathes, and sleeps building—and this set really impressed her. Even for a seasoned young builder who has done it all, this Master Dragon (Rontu) was an engaging and rewarding project. She was especially impressed with the posability; once built, the dragon has incredible movement in the head, jaw, legs, and tail, which makes it look fantastic on her display shelf. The addition of the four minifigures (especially Lloyd and Sora) and the mini-shrine added a lot of play value, but for her, the joy was all in the intricate details of the build itself. It's sturdy enough to actually play with but detailed enough to look like a collector's piece. If you have a child in your life who is passionate about LEGO, I can't recommend this enough. It's a brilliant addition to any Ninjago collection! #complimentary #LEGO @influenster @lego

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Fun build with great detail

Amlippa1 August 29, 2025

This set was a lot of fun to build, with clear instructions and plenty of detail in the design. The minifigures are colorful and well-made, and the finished build feels sturdy enough for play but also looks great on display. I really appreciated the little features and moving parts that make it more interactive. Overall, it kept me engaged from start to finish and is a solid addition for any Ninjago fan.

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Great set

Let's Play September 14, 2025

This Lego set is a lot of fun to put together, with the instructions being easy to follow. The pieces seem to be of good quality as always, with Lego. It didn't take long for my daughter and I to put it together. Holds up well for playing with it afterwards. The little disc goes really far as well.

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Lego black dragon

rebeccaj198_2977 December 20, 2025

[This review was collected as part of a promotion.] A lovely little set. Ideal for the Dragon or Ninjago lover in the family. Lots of little details that make lego just that little bit special. I would say this was a quick build set. For fast builders 30min. The only trouble I have now is where to put them all. I do like more of the packaging is starting to go towards paper packaging. Hopefully the future sets will continue in this way.

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Fun

Lee August 20, 2025

Very thorough instructions as always with Lego. I do wish the characters and character accessories came in their own separate bag though. It can be difficult to find all the pieces for them in these larger packs. Also the wings were loose in the box instead of in a bag. This caused some minor black marks along the raised bits that don't appear to wipe off. Overall it seems like a good little kit though with a good amount of characters included.

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Rontu the Dragon in now available in a Lego set

Konpur August 31, 2025

In a house of anime lovers, we just had to grab the latest Lego set featuring the dragon Rontu from the Ninjago series. With 381 puzzle pieces, it was geared for kids over the age of 7years. It was challenging to assemble but not too complicated as the sets geared for older kids. We really liked the color of the tile pieces and put together a complete set in an hour or so. Overall, it was fun to assemble, well made with easy to follow instructions! Thanks Lego for another successful set!

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Great product

victoriap442_2877 December 10, 2025

[This review was collected as part of a promotion.] We have received this and my little one is going to be so happy Christmas morning I am keeping this as a preset it's really good looks great when built and has a very lightweight to it so it's perfect for him he loves Lego sets

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Love the set

phuongl37_2031 December 10, 2025

[This review was collected as part of a promotion.] Lego Rontu the Master Dragon is an amazing set from Lego. It is perfect to detail with all clear instructions. I love the way they divided the amount in each set. 3 sets of bag to make in the end with stickers to attach. Lots of fun time together with my kids.

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I love this lego

AnT August 20, 2025

The LEGO NINJAGO Rontu the Master Dragon set is a fun and detailed build that brings the excitement of the series to life. The dragon design is impressive with movable parts, and the included ninja minifigures make playtime even more engaging. It's a great gift choice for kids who enjoy action, creativity, and the world of NINJAGO.

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Excellent

nevedas_6215 January 3, 2026

[This review was collected as part of a promotion.] This LEGO Ninjago set is really fun and well made. My 6-year-old daughter built it completely by herself without any help, which shows how clear and easy the instructions are. The dragon looks great and is fun to play with. The set arrived on time for Christmas, and my daughter was very happy and excited when she received it. The quality of the lego is very good and clearly. I highly recommend this set. Great quality and perfect for kids!

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Price History

Historical price data graph for LEGO NINJAGO Rontu the Master Dragon Building Toy - Dragons Rising Model Building Kit for Boys & Girls, Ages 7+ - Kids Toy W/ 4 Ninja Minifigures & Dragon Figurine - Gift Idea for Birthdays - 71842

Recent Price Changes

Detailed price history for the past 90 days

Walmart.com Pricing

5 records

Walmart.com prices have ranged from $39.99 (Jun 24) to $47.99 (May 23) over the past 90 days. Current price is 13.3% below the 90-day average of $46.11.

Walmart.com price history for LEGO NINJAGO Rontu the Master Dragon Building Toy - Dragons Rising Model Building Kit for Boys & Girls, Ages 7+ - Kids Toy W/ 4 Ninja Minifigures & Dragon Figurine - Gift Idea for Birthdays - 71842 showing recent price changes over the past 90 days
Date Price Change % Change
$39.99 $-7.00 -14.9%
$46.99 $-1.00 -2.1%
$47.99 $+0.38 +0.8%
$47.61 $-0.38 -0.8%
$47.99
No third-party seller price history available for this product in the past 90 days.