The shipping cost varies based on the fulfillment method you choose. With Amazon, you can either choose to ship the products yourself ("Self-ship") directly to customer or use Fulfillment by Amazon (FBA). In the case of Self-ship, the shipping cost depends on the 3rd party logistics provider you choose. In the case of FBA, the fee per unit includes picking and packing your orders, shipping and handling, customer service, and product returns. Fees are based on the weights and dimensions of your product.