?The JXD JD509G 509G JD509W 509W RC Quadcopter Drone Spare Parts CW &amp; CCW Blade Propeller Set provides a cost-efficient solution for quadcopter propeller replacement as well as upgrade. Uniquely designed blades produce a high lifting power£¬ offering an enhanced overall efficiency so as to conserve battery power. Delivering such a high performance£¬ it will be a powerful addition to JXD 509W 509G models. Tough construction resists shock and bump for ultra durability. Click and order now! You won¡¯t regret it!                                    Features             Ideal for quadcopter propeller replacement as well as upgrade<br> Uniquely designed blades produce a high lifting power<br> Offer an enhanced overall efficiency so as to conserve battery power<br> Tough construction resists shock and bump for ultra durability<br> Easy to install   <br>                                                            Specifications             Suitable for     JXD 509W 509G    <br> Color     Black    <br> Dimensions     (3.15 x 1.97 x 0.39)" / (8 x 5 x 1)cm (L x W x H)    <br> Weight     0.53oz / 15g      <br>                                                             Package Includes            2 x CW Blades<br>2 x CCW Blades<br>