Description The Self-tightening Carbon Fiber Balanced Propellers, have the same specs as the factory props, simply put them on and fly! With the self-tightening props, you don't need anything else, simply screw on the props and you are ready to fly. Specifications: Size: 9.4 x 5.0 inch Weight: 20g (pair) Material: 3K Carbon Mounting method: built-in lock nut, hand driven installation.
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