If you are selling physical products through your online business, you are required to ship the products to the customers. When you ship products, you are also required to ship the product as fast as you can and ensure that your customers get the product pretty soon. When you buy products, can you wait forever to receive the product or do you want to get it very fast? Well,you want it delivered fast, and the same theory also applies when you sell products as an online business. When products fast, your customers will like to order again and again from you, and your sales will grow.