All goods are sold at the factory price, and there are no shipping fees or invoices included. Due to the differences in regions, quantities, and weights and volumes among our customers, we operate based on the principle of "shipping as cheaply as possible." Please contact our customer service after placing your order. Our customer service will recommend either courier or logistics services based on the weight of your order! The shipping fees are borne by the buyer, and the shipping costs will not be a reason for returns or exchanges!