Standard Service will ship with either USPS First Class Mail or FedEx SmartPost (Ground Economy) and takes 3-8 business days to arrive.FedEx 2Day Service will ship with FedEx's expedited 2Day service and takes 2 business days to arrive - Saturday Delivery will be used for orders shipped on Thursdays, if available.Please note, FedEx 2Day can not be delivered to P.O. Boxes.