Published by at 25 de julho de 2026 Tips: If need tracking number please choose Standard Int'l Shipping, thanks! Product Description Contra Rotating Spinner for RC F3A Material: carbon fiber Size: 3.25inch (82mm), 3.5inch (89mm) Color: black, white The co-rotating spinner is made of carbon fiber material. It is specially designed for F3A. It consists of two parts: a front propeller and a rear propeller. It is mainly based on the air quality caused by the propeller thrust to cause significant tangential or rotational deformation. The air flow generated by the rotating blades. The energy of this tangential air flow is wasted in a single propeller design. In order to take advantage of this wasteful effort, the second propeller utilizes the turbulent air flow in the position after the first propeller. Package include 1PC Spinner About US ZYHOBBY is a China Hobby Wholesale online shop, it focus on superior Radio control toys selling, such as helicopter, wooden airplane, car model, boat model and all kinds of model accessories. We are sincerely in face of customers with high quality products, satisfied price, on-time delivery date, and offer full-scale after-sale service. Your satisfaction is our greatest driving force. We continuously pursue excellent quality. Sincerely welcome every friend's guidance and support. Shipping Item(s) will be shipped within 1-2 business day after confirmed payment (weekend and holiday excluded). Returns We will accept the return of item(s) that was purchased from ZYHOBBY within 30 days of receipt of shipment. Customers must agree to the following in order to ship item(s) back to us: 1) We accept return item(s) within 30 days after you received the item. 2) Please offer us tracking number if you returned item(s). 3) Return shipping cost is responsible by buyer. 4) The item(s) MUST be in unused condition AND in its original packaging (cannot be glued or tampered with in any fashion). Feedback We greatly appreciate your POSITIVE feedback. Negative or Neutral feedback does not resolve any underlying issues. If you are not completely satisfied with the item(s) that you received, simply contact us, we will try our best to the resolve the issue and make your experience as simple and satisfying as possible. Thank you for your purchase!