This pair of 2110 folding propellers have been designed and engineered for the DJI Matrice 300 RTK drone to provide superior flight performance. With their aerodynamic design, these M300 propellers enable a maximum flight time of 55 minutes at altitudes below 2500 meters MSL. For operations at higher altitudes, please use the available 2195 High-Altitude Folding Propellers. These 2110 M300 props are sold in pairs with one clockwise (CW) and one counterclockwise (CCW) propeller.