Practical for educational and hobby applications, these model airplane propellers are designed to be durable and fold-resistant. Ideal for students working on projects or hobbyists building aircraft models, they provide a hands-on way to explore the mechanics of flight, making them a valuable addition to any DIY aircraft toolkit. Features - Color: Red - Material: Plastic - Size: 12.50 x 3.00 x 2.00 cm / 4.91 x 1.18 x 0.79 in - Aerodynamic efficiency: Designed to maximize flight performance, providing smoother and more stable operation for model airplane enthusiasts - DIY-friendly design: Easy to assemble, this kit is practical for students and hobbyists looking to build or upgrade their model airplanes with minimal effort - Built to last: Featuring fold-resistant materials, these propellers are durable and reliable, ensuring consistent performance over time - STEM education focus: Tailored for science and engineering projects, this kit helps students explore air concepts while enhancing their practical skills - Versatile usage: Compatible with various airplane models, this set is suitable for both educational purposes and recreational flying activities Package list: 10 x Propellers (hole diameter 6x4mm)