$20 to $50

Future engineers build a lightning-fast race car powered by nothing but air... no batteries or electric motor required! Curious kids get hands-on w...

Build your very own vending machine! With this engineering kit, you build a toy vending machine that sorts coins, dispenses candy or other small pr...

Take marble runs to new heights with the Gecko Run Marble Run Starter Set from Thames & Kosmos! Unlike traditional marble runs, this innovative...

Dig in and learn about the Earth under your feet. Geology Lab for Kids features 52 simple, inexpensive, and fun experiments that explore the Earth’...

Launch Control, we are ready for launch! Jet. Set. Go! Using the fun and clear instruction booklet, construct a Hydraulic Paper-Planes Launcher. Fo...

Explore miniature worlds with Isoscapes!Spark your imagination with builds of breathtaking landscapes or intricate metropolitan high-rises—then mak...

Explore miniature worlds with Isoscapes!Spark your imagination with builds of breathtaking landscapes or intricate metropolitan high-rises—then mak...

Future engineers design and build a chain reactions machine using LEGO technic bricks! They'll play, learn, and wow as they construct 20 different ...

Build your own mechanical hand, slip it on like a glove, and get a grip, without motors or electricity. It uses hydraulic power to simulate the mov...

Future engineers enjoy the focused work of this 180-piece cyber hand build that teaches them about mechanical assembly and hydraulics. Once built, ...

Get future engineers on track for STEM learning with this model train set of the future! They'll enjoy the focused work of building this 186-piece ...