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Introducing the majestic Mould King 12031 Union Pacific 844 Steam Locomotive. This beautifully crafted model is made up of over 3,300 intricately d...

Discover engineering excellence with this intricate W12 twin turbo engine model. Featuring 12 moving pistons, a rotating crankshaft, and twin cylin...

Mould King 10226 is a high-detail V12 engine model inspired by iconic Italian supercars. Built from 863 pieces, it features a bold red engine cover...

Mould King 10225 is a detailed V8 engine model with an integrated transmission system, built from 855 pieces. Inspired by classic American muscle c...

This high-performance turbocharged V8 engine model replicates the iconic design of American muscle cars, featuring a large supercharger and an aggr...

The bold red engine covers are a defining feature of this V8 engine model, capturing the essence of high-performance sports car engineering. The de...

This twin-turbo V8 engines model is inspired by high-performance M Power V8 engine and gearbox. With its signature bright red cylinder heads and la...

This LEGO-style V12 engine model is inspired by the legendary Italian supercar powertrains, capturing the raw power and engineering precision of a ...

Build this W16 engine and gearbox model kit and explore one of the most powerful German automotive engines. Measuring over 35 cm in length and comp...

This LEGO-style Flat-6 engine model is inspired by the iconic horizontally opposed six-cylinder engines found in legendary sports cars. The design ...

Unleash the thrill of engineering with the Mould King 10171 Chevy LSX454 Motorized V8 Engine Building Set. This meticulously crafted model replicat...

Ignite your passion for engineering with the Mould King Motorized BGT W16 Engine Building Set.  This model includes a turbocharger setup and a prec...

Classic V8 Engine - The upgraded engine has the number of building blocks increased to 2718 pieces, enriching more details and functions of the V8...

MDK10088 MOULD KING Motorized V8 Engine Building Kit Description Explore this 534-piece Motorized V8 Engine model, this kit replicates the intricat...

Ausini Keyixing Electric Train Set No. 25910 High Quality, High Performance   639 Pieces 1 Green/Red Steam Locomotive (Battery Operated) 6 x AAA ...

645 Pieces 1 Grey/Blue Electric Bullet Locomotive (Battery Operated) 6 x AAA Batteries (Not Included) Difficulty 4/5 

765 Pieces 1 Grey/Red Electrict Bullet Locomotive (Battery Operated) 6 x AAA Batteries (Not Included) 1 Passenger Car 1 Station 4 Figures/Minif...

The Sidewinder building block kit was designed by an actual roller coaster engineer is modeled after contemporary steel coasters.  It is constructe...

Swap out the hand crank for a gear shaft and automate your Coaster Dynamix roller coaster model with our compatible motor set.  Our motor and batte...

Designed by an actual roller coaster engineer, the Cyclone Roller Coaster building block kit is constructed for quick assembly and features an inge...

Gears make things move! Join Ty and Karlie — the young engineers featured in the other Kids First early engineering kits — to build four awesome ge...

About this product ALL-IN-1 DIY SOLDERING PROJECT - This kit is an expansion of our popular Jitterbug Soldering Kit including all the tools a make...

A follow-up to the best-selling original Robotics: Smart Machines kit, this version focuses on wheeled robots. Like the original, this kit also giv...

Conduct more than 60 electrifying experiments with circuits and magnetic contraptions to learn about electricity and magnetism, and how these two f...