This item is exclusively customized for MJX B20 EIS RC Drone. If you want to one more replacement propeller for the occasional need of your MJX B20 EIS RC Drone but this one will be your best choice! Features: Exclusively customized for MJX B20 EIS RC drone only. can be used for a long time. Uniquely designed & manufactured for high RC drone performance. The package includes 4pcs propellers. If you have any problems please feel free to contact without hesitation. Specifications: Item name: Propeller Quantity: 4pcs Suitable for: MJX B20 EIS RC drone Package information: Package size: 18.5*6*3cm Package weight: 60g package Packing list: 4* Propeller 1* Other fitting package