Due to many issues with lost/delayed USPS shipments, we highly recommend using UPS which is a more reliable service at this time. Additionally, for INTERNATIONAL ORDERS, please be aware that USPS First Class is the slowest shipping option. This service cannot be tracked once it leaves the United States until the receiving country updates the tracking. Shipping prices for INTERNATIONAL ORDERS are for FREIGHT ONLY and do not include any duties or fees that may be associated with customs in the destination country. Delivery times for USPS and UPS Ground are estimates only. Time in transit is calculated based on business days and do not count weekends. USPS Shipments to Canada may be delayed after May 22 due to the strike notice in effect from Canada Post.