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LEGO Dr. Fox Laboratory

Set #41454 · 2018 · 359 pieces · Moderate build

LEGO Dr. Fox Laboratory set 41454 instructions

Set Details

Set Number
41454
Name
Dr. Fox Laboratory
Year
2018
Pieces
359
Complexity
Moderate
Build Time
1-2 hours
Ages
8+
Type
Play-focused
LF
LegoFinder Editorial Team·Set data verified 2026·How we research sets

About LEGO Dr. Fox Laboratory

LEGO Dr. Fox Laboratory (set #41454) is a detailed build with 359 pieces from the Unikitty! theme, released in 2018. The Unikitty! line features colorful builds from the Unikitty animated series. This is a moderate-level build suitable for ages 8+, with an estimated build time of 1-2 hours.

Set Highlights

  • 359 pieces at moderate complexity — a 1-2 hours build.
  • Compatible with all standard LEGO sets — bricks extend naturally into other sets you own.
  • Play-focused build with interactive elements designed for 8+ builders.

Who Is This Set For?

Gift for Ages 8+

The moderate difficulty makes this accessible without being trivial — a well-matched gift for LEGO fans in the 8+ age range.

Weekend Build Project

359 pieces with an estimated 1-2 hours fits comfortably into a focused afternoon or weekend session.

Expanding a Unikitty! Collection

A solid addition for collectors building out their Unikitty! shelf. Introduces parts and builds that complement other sets from the same line.

Build Tips

1

A five-minute sort by color or piece type before starting saves time hunting for specific bricks mid-step.

2

Follow the numbered steps in sequence — structural elements early in the build support everything that comes after.

3

For active play sets, key connection points (hinges, turntables, clip joints) can loosen over time — a small dab of LEGO's own tube clutch lubricant on the stud resolves most looseness without damage.

Finding Instructions

Building instructions for LEGO Dr. Fox Laboratory (#41454) are available as a free PDF on LEGO.com. You can also upload a photo of this set to LegoFinder to identify it and access the instructions directly.

Dr. Fox Laboratory FAQ

Related Reading

More Unikitty! Sets

See all Unikitty! →

Also Released in 2018

All 2018 sets →

Similar Build Difficulty

Sets at roughly the same piece count and complexity tier — different theme and year, but a similar build experience.

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