When choosing the pitch of your new propeller, please first carefully read <a href=”https://www.propeller-shop.com/propeller-guide/”>the propeller guide here</a>. If you are still in doubt, you can contact us for advise. If you are not satisfied with the pitch recommended by us, you can return it for another one and we will even compensate you for the shipping cost. Please note that the refunded amount depends on the condition of your prop, as we cannot sell it as new anymore. Before you return an item to us, you must inform us in advance. For details <a href=”https://www.propeller-shop.com/customer-service/returns-and-exchanges/”>see here</a>.