suitable for students and hobbyists, these model aircraft propellers are designed for DIY science projects and hands-on learning. Made from robust plastic, they ensure durability and consistent performance. These propellers are compatible with various model airplanes, making them a versatile choice for any project. They are ideal for exploring the principles of aerodynamics. Features -Color:Red -Material:Plastic -Size:14.50X3.50X2.50cm/5.70X1.38X0.98in -Inner hole: 4x6mm -Robust plastic: made from plastic, ensuring stability and durability for safer and more reliable model aircraft flights -Balanced precision: expertly crafted to maintain balance and enhance flight performance, making your model aircraft more responsive and stable -Easy application: userfriendly design, suitable for students' diy science projects, encouraging hands-on skills and creativity -Replacement way: ideal for replacing or lost propellers, ensuring your model aircraft can continue to fly smoothly and last longer -Broad application: suitable for outdoor flights, model displays, and scientific experiments, meeting various needs and maximizing the utility of your model aircraft Package list: 5 x Model aircraft propeller 5 x tail hooks