The quadcopter propellers, including two CW propellers and two CCW propellers, are specially designed for Xiaomi Mi 4K version drone. High aerodynamic efficiency, low inertia, lightweight design brings good performance in durability and balance. Features Designed for Xiaomi Mi 4K version drone. Low inertia, fast and stable performance. 9.35g/W high aerodynamic efficiency decreases the flow loss. High quality ABS plastic for maximum performance, durability and balance. Specifications Brand Xiaomi Type Propellers Compatible with Xiaomi Mi Drone 4K Version Quadcopter Product Weight 35g Package Weight100g Package Size (L x W x H) About 16.0 x 2.0 x 1.5 cm Package Contents2 x CW Propeller, 2 x CCW Propeller