Coloring Mechanical Butterfly Parent-Child DIY Craft, Creative Mechanical Insect Tech Project, Moving Model

$8.33

Buddy Paint Conductive Pen - Gold & Silver Paste for Circuit Repair, STEM Promotion

$58.00

Voice Small Desk Lamp Model 1 Student Science Project Small Invention Voice-Controlled Desktop Lamp Display Material Kit

$7.50

Educational Electronic Building Blocks Circuit Experiments; Birthday Gift for Kids 10+, Smart Toys for Elementary Students, Premium Edition

$28.60

Science Experiment Model Humidifier, Qianshuixing Handmade DIY Assembly, High-difficulty Manual Atomization

$29.10

Electronic Building Block Accessories Paired with DianXueXiaoZi Circuit Science Experiment Logic Gate NAND Gate Circuit Assembly Materials

$8.00

Light Bulb Fan Experiment Kit Physics Circuit STEM Educational Science Enlightenment Puzzle Toys for Elementary Students

$4.87

German Imported KOSMOS Physical Science Experiment Kit Introductory Circuit Building Blocks Electronic Assembly for Primary and Middle School Students

$364.00

Microwave Model No. 1 Maker Small Invention Small Production Student Science Small Experiment Manual DIY Assembly Material Kit

$14.70

Little Beaver Science Experiment Kit STEM Children's Educational Programming Electric Building Blocks Toy Kids Birthday Gift

$349.00

Robot Vacuum Cleaner Model, Smart Steering Tech DIY Craft, High-Difficulty Assembly Circular Robot

$14.96

Inductive Trash Can Model No. 3, Tech DIY Project, Infrared Sensor Flip-Lid Trash Can, Student Creative Invention

$6.25