Enhanced Performance: Experience superior flight dynamics. Designed for competitive FPV racing and freestyle flying, these propellers optimal thrust and improved control.<br> Features: Fast response, fast acceleration, smoother flight.<br> Construction: Crafted from high-quality materials, the 3-blade design withstands rigorous flying conditions, making it a reliable choice for drone enthusiasts.<br> Upgrade and thickening: The blades are thickened at the weak points to avoid the situation where the aircraft cannot again after a small collision in the racing field.<br> allowing for quick replacements to keep your drone flying at .<br> Size:5 inches<br> Pitch:3.1in<br> Aperture:5mm<br> Recommended motor:2207 2100KV<br> Propeller disc diameter:129.7mm<br> Center thickness:6.1mm<br> Maximum blade width:14.7mm<br> Colour:E:Light Fluorescent Yellow<br> Material:PC<br> Package Contents:<br> 4 * Propeller<br> Only the above package content, other products are not included.<br> Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.