We offer combined shipping(US only) for all items in a 5 day period unless your account has autopay. If your account has autopay we can only combine order for 1 day because we offer next day shipping. We don’t charge a flat rate so expect a slight increase in shipping for every additional item. Make sure you wait to make payment until all auctions you are bidding on have ended or 5 days is reached. Once payment is made we can no longer combine items to that order.