This set of 40 plastic propeller blades is designed for hobbyists, students, and makers who enjoy building functional mini models and gadgets. Each four-blade propeller is lightweight yet durable, providing reliable performance in airflow-driven projects.

Key Features:​

Balanced four-blade design for smooth operation
Fits 2mm shaft DC motors (commonly used in small DIY motor kits)
Bright colors help differentiate between projects or indicate motion
Suitable for educational activities, science fairs, and beginner engineering projects

Ideal For:​

Mini cooling fans and portable air circulators
Remote-controlled boats and lightweight aquatic vehicles
Wind turbine and windmill model demonstrations
Creative educational tools and technology crafts
Classroom experiments involving aerodynamics, energy, or motor mechanics

Note:​

These propellers are designed for low-voltage, small DC motor applications. Please ensure your motor shaft diameter matches the propeller bore size (2mm recommended) for optimal performance. Great for learning, prototyping, and light-duty fun projects!