Beginner
≈ 15 minSuggested range9 min – 24 min
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Ninjago · SET 70688
Kai's Spinjitzu Ninja Training
Kai's training set with a spinner and small targets. The estimate covers brief assembly, excluding launches and subsequent practice.
- Pieces
- 32
- Release year
- 2022
- Theme
- Ninjago
- Set number
- 70688
- LEGO recommended age
- 6+
- Historical price in EUR
- Not verified
The historical euro price has not been verified. No current offer or conversion from another market is shown.
Official English name verified at: LEGO English archive ↗ · Checked on 26 October 2026.
TIME TO BUILD
How long does it take to build Kai's Spinjitzu Ninja Training?
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
≈ 10 minSuggested range6 min – 16 minExperienced
≈ 7 minSuggested range4 min – 12 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: Kai's training set with a spinner and small targets. The estimate covers brief assembly, excluding launches and subsequent practice. Small stations and the launching element are prepared before play. 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.
Log your buildBuild your own story.
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Create a free account →BEYOND THE BRICKS
Did you know?
Inside the set
A red spinner
The large transparent form surrounds the character area.
LEGO sourceSeparate accessories
Small stations and the launching element are prepared before play.
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.
U.S. Administration for Children and FamiliesMore than the finished result
Exploring ideas and inventing stories are parts of play alongside completing an object.
U.S. Administration for Children and FamiliesWritten by HowLongToBuild · Sources are linked with each story · Checked on 26 October 2026. Historical facts and story details refer to the context described.
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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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
Kai's Spinjitzu Ninja Training · Selected for the subject and atmosphere
Electronic pulses and orchestral colours accompany structures, wheels and mechanical assemblies. The rhythm suggests movement.
OUR PICK
TRON: Legacy
Daft Punk
Electronic and orchestral · pulsingTry a different atmosphere
ANOTHER MOOD
Ambient 1: Music for Airports
Brian Eno
Ambient · minimal and relaxedEditorial 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 →
Report a problem with this set →
YOUR NEXT BUILD
You might also like
Sets from the same theme or with similar suggested building times. The ranges shown are for intermediate builders.
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Lloyd's Spinjitzu Ninja Training
32 pieces · 6+
6 min – 16 min
Suggested time · Intermediate
Same theme, a new build
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Jay's Spinjitzu Ninja Training
25 pieces · 6+
4 min – 13 min
Suggested time · Intermediate
Same theme, a new build
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗