In addition to their performance benefits, these propellers are also designed with safety in mind. The ducted fan design helps protect the from damage during collisions, extending the lifespan of your propellers. This feature is particularly useful for beginners who are still mastering their flying skills and may experience occasional crashes. Features -Color:Red -Material:Plastic -Size:3.00X3.00X0.70cm/1.18X1.18X0.28in -Efficient lift and stability: the quadblade design ensures efficient lift and stable flight, enhancing overall performance - design: the propellers add a unique and recognizable look to your aircraft -Lightweight and easy to transport: designed for portability, these propellers are easy to carry and use anywhere -Versatile : ideal for both indoor and outdoor flying, providing flexibility in your flying locations -Robust build: made with durability in mind, these propellers are resistant to wear and tear Package list: 64 x model plane propellers