25% off and Free US Economy shipping on any qualifying merchandise purchase of $40 or more. Offer valid from December 13, 2013, 12:01am through December 18, 2013, 11:59pm PT. This offer is only valid to destinations where we ship Economy in the US, which means the 48 contiguous United States (and the District of Columbia). This offer is not valid on orders shipping to PO Box Addresses. This offer is not valid for any other shipping method or destination.