OMPHOBBY M1 Replacement Parts Metal Main Rotor Housing Set OSHM1001 Sale! from 969 /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 rotor housing for the OMP Hobby M1 Helicopter Qty available:4 SKU:OSHM1001