LEGO

LEGO Creator Fierce Shark with a Treasure Chest Building Set, 379 pc.

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Item # 990475883
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Highlights

  • 3 IN 1 TOY FOR KIDS – LEGO Creator 3 in 1 Fierce Shark with a Treasure Chest (31381) building toy lets boys and girls ages 8 years old and up construct 3 shark and sea animal toys from 1 set of LEGO bricks
  • BUILD & REBUILD – Kids can dream up endless stories as they create 1 of 3 brick-built sea creatures: a shark with a treasure chest, an anglerfish or a manta ray (models cannot be built simultaneously), and customize their builds with themed accessories like a treasure chest, crab, clam shell, and sea plants
  • POSABLE SHARK TOYS – The shark model has a posable mouth, body, side fins and tail fin, the anglerfish toy can move its mouth, side fins and tail fin, and the manta ray toy has a posable tail fin
  • PLAY & DISPLAY – Each build can be displayed on an included stand, and doubles as fun aquatic bedroom or play room decor for display on a shelf or desk
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4.9706 out of 5 stars
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lego creator fierce shark with a treasure chest building set, 379 pc. Centered front view of the assembled gray LEGO shark with posable open mouth showing white teeth and pink tongue, displayed with a small treasure chest on a stand, a red crab and green sea plants; product box art visible in background; also suitable as shelf or desk display decor.
LEGO Creator Fierce Shark with a Treasure Chest Building Set, 379 pc.
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About this item

Product details

Explore Underwater Adventures

Dive into the depths of creativity with the LEGO Creator 3-in-1 Fierce Shark with Treasure Chest (31381) building toy. Designed for boys and girls aged 8 years and up, this set offers endless hours of imaginative play. Build and rebuild three different sea animal toys from one set of LEGO bricks, sparking curiosity and fun.

Three Models in One Set

This versatile playset lets kids create a posable shark toy displayed on a stand with a treasure chest and crab. Rebuild the shark into an anglerfish with movable mouth and fins, or a posable manta ray on a stand with a clamshell. Please note, models cannot be built simultaneously, adding to the excitement of choosing your next creation.

Interactive Building Experience

The LEGO Builder app enhances the building process with easy-to-follow instructions. Kids can save their sets, track progress, and explore models in 3D by zooming in and rotating them while building. This interactive feature makes the experience even more engaging and rewarding.

A Perfect Gift for Sea Creature Enthusiasts

With 379 pieces, this playset makes an exciting birthday or anytime gift for kids who love sea creatures and pretend play. Once completed, the builds double as unique aquatic decor for shelves or desks, adding a touch of ocean-inspired charm to any space.
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Specifications

Recommended Age Range: 8+ years

Included: 379 pieces

Member ratings & reviews

4.9 out of 5 stars
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Showing 1-3 of 30 reviews

Feb 23, 2026
Reviewer name: IrinaT
5 out of 5 stars
5 out of 5 stars review

LEGO creator is a great gift idea.

[This review was collected as part of a promotion.] I received this Lego set creator. My child really enjoys building Lego. This set has379 pieces, enough to build a very large model of an underwater shark. The box is very colorful and beautifully presented. This lego set is a great gift 🎁 for any child, and they”ll be delighted.

Review from influenster.com
Helpful?4RPHRESRIA3T18697303288
Apr 4, 2026
Reviewer name: STEPHANIE
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

A little extra fun when mailing something

I like to keep packaging on hand for when I need to randomly send something or return something. These were on rollback and so they were the same price as the normal ones. It was fun to add a little pizzazz into life with the pretty colors. I’m excited to use them in the future!

Review from walmart.com
Helpful?4RPHRESRIA3T18697303288
Apr 16, 2026
Reviewer name: Christina
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Fun Build with Great Details – Kids Loved It

[This review was collected as part of a promotion.] Picked this up as a gift and it turned out to be a great choice. The shark build is really cool and has a lot of nice details, especially the mouth and fins. It kept my kid engaged the whole time without being too frustrating, which is always a win. The instructions were easy to follow and everything was organized well in the box. The pieces fit together like you'd expect from LEGO no issues at all. Once it was built, it actually looks really good on display but is still sturdy enough to play with. I also like that it's a Creator set, so you can rebuild it into different models for more use out of it. Overall, great value for the price and a fun build. I'd definitely recommend it for any kid who likes sharks or LEGO.

Review from walmart.com
Helpful?4RPHRESRIA3T18697303288

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