Turbofan Engine Model, Adjustable Speed Aircraft Engine Turbojet Engine Model with Light, Aero Mechanical Science, Gift, Education Display, Desktop Toy (25CM)

VoOqo Turbofan Engine Model, Adjustable Speed Aircraft Engine Turbojet Engine Model with Light, Aero Mechanical Science, Gift, Education Display, Desktop Toy (25CM)

Machine Works Build Your Own Jet Engine Toy - Replica Model Building Kit - Features Sounds and Illumination, 40+ Pieces, 10+ Years

Playz V8 Combustion Engine Model Kit That Runs - Build Your Own STEM Mini V8 Model Engine Kit for Adults & Kids Age 12+, Visible V8 Mini Engine Kit That Works for Adult w/ 270 STEM Parts