Beginner
≈ 1 h 18 minSuggested range46 min – 2 h 5 min
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Ninjago · SET 70684
Spinjitzu Slam - Kai vs. Samurai
A Spinjitzu challenge with Kai and Samurai.
- Pieces
- 164
- Release year
- 2019
- Theme
- Ninjago
- Set number
- 70684
- LEGO recommended age
- 8+
- Archived regional retail price · Germany
- 19.49 €
Archived regional retail price in the stated market and currency. It does not establish the Italian launch price; no estimated currency conversion. Brickset ↗ · Reference checked on 22 October 2026
Official English name verified at: LEGO English archive ↗ · Checked on 26 October 2026.
TIME TO BUILD
How long does it take to build Spinjitzu Slam - Kai vs. Samurai?
For younger children, we estimate the first illustrated setup, with adult guidance when needed. Ranges reflect building familiarity, not a child’s age or ability. Free play and learning have no completion time.
Editorial estimate · first setup
Intermediate
≈ 52 minSuggested range31 min – 1 h 24 minExperienced
≈ 36 minSuggested range21 min – 58 minFirst guided arrangement: one model for 3 in 1 sets, a small composition for creative boxes, and setup alone for expansions. Excludes play, breaks and electronic configuration. These are broad editorial estimates, not measured times or targets to meet.
How we estimate times · sources and method
Editorial assessment: A Spinjitzu challenge with Kai and Samurai. A tall grey tower carries an orange flame. Creative boxes and modular decorations refer to one first illustrated arrangement; 3 in 1 sets to the main model only, and expansions to their first setup. An adult may guide the child. Ranges reflect building familiarity, not age or development; they do not measure play, learning or a speed contest. For older sets, unnumbered bags or previously mixed pieces may prolong sorting. No verified timed build: indicative values with substantial variation.
Sources do not always specify the builder’s experience. The three experience bands are our editorial assessment, based on the complexity of the set and individual accounts where available.
- LEGO · set-specific instructions ↗
Official name, pieces, age and imagery; no timed building data.
- LEGO · set manual ↗
Document for this set number. The duration is an editorial estimate, not a LEGO timing.
Checked: 26 October 2026 · Method v1.0 · Limited reports; not a statistical average.
BUILT BY THE COMMUNITY
Yours could be the first building time.
0 reviewed solo building times.
No solo building times have been reviewed yet. You can still find editorial estimates under Suggested times.
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How much display space does it need?
Assembled-model dimensions are not yet documented for this set. Box dimensions cannot tell you how much display space it needs.
BEYOND THE BRICKS
Did you know?
Inside the set
The model structure
Red and light blue distinguish the two spinners.
LEGO sourceIn the group of builds
A tall grey tower carries an orange flame.
LEGO sourceBeyond the set
The stories, places and inventions behind your build.
Two ways to play
Structured play follows organised activities or rules; in free play children choose what to imagine and do.
Read the full story
Childcare.gov distinguishes adult-organised activities from play directed by children’s own choices. Bricks can support either approach: following a task or treating the model as a starting point for invention. These are different possibilities, rather than a ranking of correct and incorrect ways to play.
More than the finished result
Exploring ideas and inventing stories are parts of play alongside completing an object.
Read the full story
The source also highlights hand activity, conversation and shared decisions during play. Inventing a story, explaining an action or finding a solution are different experiences from finishing an object. A completed model can therefore become the beginning of further play rather than its endpoint.
Expanded stories updated on 29 October 2026
Written by HowLongToBuild · Sources are linked with each story · Checked on 26 October 2026. Historical facts and story details refer to the context described.
BEYOND THE BRICKS
Keep the story going
Films, series, games, books and music connected to this model or its universe.
LEGO Ninjago: Masters of Spinjitzu
Another adventure in the same universe, for before or after your build.
Title search on JustWatch: choose the result matching the title and year above.Streaming: Italian catalogue. Check availability, languages and terms on the external service. Searches are labelled; book results may include different editions.
Suggest a work or report a wrong connection →THE COMMUNITY’S EXPERIENCE
What was it like to build?
Three separate scores from 1 to 10. For difficulty, 1 means very easy and 10 means very difficult.
No approved ratings yet. Scores are never generated by this site or inferred from the recommended age.
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Building tips from the community
Specific steps, useful checks and sticking points. Contributions appear after moderation, in their original language. Do not upload instruction pages or personal contact details.
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Sign in to contributeSET THE MOOD
A soundtrack for your build
· Selected for the subject and atmosphere
Harry Potter’s orchestra suggests wonder and small mysteries. It follows a magical setting, with less narrative alternatives when you prefer to focus on detail.
OUR PICK
Harry Potter and the Prisoner of Azkaban (Soundtrack from the Motion Picture)
John Williams
Narrative and cinematicEditorial suggestions, not official soundtracks for the set. External services may require an account or subscription; editions and availability can vary by country. Suggest another soundtrack →
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YOUR NEXT BUILD
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Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
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