When you click on add to cart, it increements count at the badge count icon above. The number of times you click on add to cart, those many quantities of items will be added (all the items inside the cart are retreived from the redux store), when you click on the image from the cart icon dropdown, it will redirect you to details page component where you can view the product details, we display details on this component by fetching data stored in the redux store via useSelector hook.