The cart page lists the current items you have entered in the shopping cart.  You can continue to add items or proceed to submit the order.
Please note: the items will only remain in the cart while you are shopping on the site and will not persist if you leave.  To clear a cart completely, click the clear cart link.

You can change the quantity of items by entering the qty amount or using the up/down arrows to increase or decrease the quantity and then updating the cart by clicking the Update button.