Overview Powerful propulsion with a foldable, easy to mount, and durable design. Highlights Foldable and light. Push type design allows for quick mounting and detaching. In the Box 4730S Propeller Pair × 1 Specifications Diameter × Thread Pitch: 4.7×3.0 inch (11.94×7.62 cm) Weight (single one): 2.5 g Compatibility Spark Spark - Propeller Guard