Dropshipping is a business model that lets you sell products by using a supplier. A supplier holds the product inventory and ships the products for you. When a customer places an order in your store, you purchase the products from the supplier and select how to ship the product directly to your customer. You don't need to hold any inventory or ship items yourself.
Products are the most important part of your dropshipping business, the products that you choose to sell will shape how you run your online store, how you market your store, and who you market it to.