JMBricklayer Roller Coaster Challenging Building Sets for Adults 70003, Motorized Steampunk Marble Run Great Ball Contraption, Large Dinosaur Factory GBC Machine, Gifts for Challengers(5391 PCS)
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JMBricklayer Roller Coaster Challenging Building Sets for Adults 70003, Motorized Steampunk Marble Run Great Ball Contraption, Large Dinosaur Factory GBC Machine, Gifts for Challengers(5391 PCS)

2.1/5
Product ID: 674011368
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🚀Dual motor system
🦖Dynamic dinosaur module
⚙️5391 PCS

Description

🎢 Build, Create, Conquer—Your Next Adventure Awaits!

  • INTERACTIVE FUN FOR ADULTS - Engage in a rewarding build that tests your engineering prowess!
  • PERFECT GIFT FOR INNOVATORS - Ideal for birthdays or just because—spark creativity and conversation!
  • DYNAMIC MARBLE RUN EXPERIENCE - Watch marbles race through thrilling lifts and tunnels!
  • STUNNING STEAMPUNK AESTHETICS - A visual masterpiece that doubles as a captivating display!
  • ULTIMATE ENGINEERING CHALLENGE - Unleash your inner architect with 5,391 pieces of intricate design!

The JMBricklayer Roller Coaster Building Set (70003) is a 5,391-piece motorized steampunk marble run designed for adults. It features intricate engineering elements like lift stairways and a dynamic dinosaur module, providing a challenging yet rewarding building experience. Perfect as a gift for engineering enthusiasts, this set combines creativity with technical skill, making it a stunning display piece.

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Reviews

2.1

All from verified purchases

E**N

Impossble to assemble 5,500 pieces without EXCELLENT directions.

I love marble runs. I've built more than a few. BUT, if you buy this, know that it is an above next level expert build!!!In fact, despite my experience I can't even finish the first bag of parts. Sadly, the directions are almost great, but all you need is a few bad descriptions like; 'which hole does this go into', or 'what direction does this piece go', or 'these pieces look the same, or 'the orientation depicted is misleading or not fully described or can't even be determined'. Just one error (and with 5500 parts that's almost innevitable) throws everything off. I've actually shelved it after trying to build a subassembly 3 times and failing. I'll go back to it, but I want you to know this is really really hard and there are just so many ways to mess it up. I will say that the problem rests 95% with the directions. Sadly, they came so close but in the end missed the mark which means all I bought was 5,500 lego pieces. If you enjoy what I've described, then I'd rate it 5 stars. But since there is a pretty high chance I will never finish it, I have no choice but to give it only one star. I've taken pictures and circled all of the instructions that are confusing in just the first few pages of over 100 pages and will send them to the company for their review and hopefully updates.

S**E

NUMEROUS MISSING PIECES

JMBrickslayer is notorious for having numerous missing pieces with their building sets, customer service is basically non existent, when you do get in touch with them it takes anywhere from two weeks or longer to receive missing pieces, then you start building again only to have more missing pieces and another wait of two weeks or longer and this goes on and on. I have purchased a few of their items and have only completed one, all the other sets had numerous pieces missing. Their quality control is terrible!

S**N

Missing 2 critical pieces.

Very sad. Missing 2 critical parts and cannot complete. Not sure how to contact manufacturer other than this review.

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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Currently out of stock

UKstore

Sorry, this item from our UK store is out of stock. We're restocking soon—check back or contact support for similar products.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Jmbricklayer Roller Coaster Challenging Building Sets For Adults 70003 Motorized | Desertcart GB