These model aircraft propellers are an essential tool for any DIY enthusiast or student. suitable for science projects and hands-on learning, they provide a practical way to explore the principles of aerodynamics. Made from robust plastic, these propellers are built to last and can withstand regular use. They are compatible with a variety of model airplanes, ensuring versatility. Features -Color:Red -Material:Plastic -Size:14.50X3.50X2.50cm/5.70X1.38X0.98in -Inner hole: 4x6mm -Stable construction: made from durable plastic, providing stability and durability for safer and more reliable model aircraft flights -Precision engineering: carefully crafted to ensure propeller balance and exceptional flight performance, enhancing agility and stability -Diy friendly: easy to use, suitable for students' diy science projects, promoting hands-on learning and creativity -Maintenance aid: solves the problem of or lost propellers, allowing your model aircraft to resume normal flight and extend its service life -Multi-purpose: suitable for outdoor flights, model displays, and scientific experiments, meeting various needs and maximizing the potential of your model aircraft Package list: 5 x Model aircraft propeller 5 x tail hooks