Gemfan 45mm-3 Propellers: Compact Performance for Small Drones. The Gemfan 45mm-3 propellers (1.5mm shaft diameter) are the ideal choice for small drones and whoop designs. The triple 45mm design offers the perfect balance between impressive thrust and smooth control, resulting in stable flight and precision in confined spaces. The 1.5mm shaft diameter ensures broad compatibility with popular small drone motors. Made from durable material, these propellers are impact-resistant and retain their properties even after demanding maneuvers. They are ideal for FPV pilots, both for racing and freestyle, who seek agility and speed from their equipment. Enhance your drone’s capabilities with Gemfan 45mm-3 propellers for efficient and stable flight.