More than a simple set of props, these four AVAN Rush 2.5" Drone Propellers from EMAX have been engineered to maximize performance and durability. Each prop is made from a special polycarbonate blend using an injection mold process that minimizes any air bubbles that could lead to structural instability. With the addition of thicker airfoils near the center hub, the result is a set of propellers that can withstand high-impact crashes. Designed for Babyhawk Race conversion and compatible with EMAX 1106 4500kv/4S or 6000kv/3S motors, each propeller's 1.9" pitch and high-cambered airfoils allow for easier linear control and increased lift, even at high angles of attack while flying at high speeds.