The for Gemfan 1611 3-Blade Propellers are crafted from durable PC material, offering an ideal balance of strength and lightweight design. These propellers provide excellent thrust and agility, making them perfect for drones with takeoff weights. They deliver responsive performance with rapid acceleration, exceptional speed, and smooth handling, making them ideal for racing and freestyle flying. Feature a 1.5mm center hole for easy installation and compatibility with various setups. Colour:Transparent-Yellow/Transparent-Gray/Transparent-Blue Material:Plastic<br><br>Package Contents: 4 * RC Propeller Only the above package content, other products are not included. 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.