OMPHOBBY M4 Helicopter Main Shaft OSHM4005 Sale! from 444 /per Qty. Add to Cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. This is a replacement main shaft for the OMPHOBBY M4 Helicopters Contents Main Rotor Shaft Φ8*125-1 Qty available:6 SKU:OSHM4005