Check the listing for details. 2021 Mars 'Ingenuity' Helicopter Eighteenth Flight Pasadena 20 December. Listed at 4.00 USD. Mars 'Ingenuity' HelicopterEighteenth Mars Flight 2021 Offering a cover serviced for the Mars 'Ingenuity' Mars Helicopter, Eighteenth Test Flight on Mars, Jet Propulsion Laboratory, Cancelled Pasadena CA 20-December-2021. For U.S. Buyers: Your item(s) will be sent by USPS eBay Mail which HAS an eBay Tracking Number issued by eBay and tracked through the USPS postal system. This provides for low-cost shipping of $1.00 (for up to 3 oz.: approx. 6 items/covers depending on size and weight). Items exceeding that weight will be sent by USPS First Class @ approx. $4.00. For items totaling over $20.00, the shipment will be made by USPS First Class Package which HAS a USPS Tracking Number, the cost of which (starting at $4.00) will be added to your invoice accordingly. Total cost, again, will depend on the size and weight of the items. Please contact me via eBay Message if additional information is needed. Please do not send payment until an invoice is received reflecting the correct S&H amount. For International Buyers: Your item is normally sent by regular USPS First Class International Mail which DOES NOT have a Tracking Number. This provides low-cost shipping ($3.00 for up to approx. 6 items/covers, depending on size and weight). For items totaling over $20.01, the shipment will be made by USPS International First Class Package (unless other arrangements are made, i.e. contacting the Seller), which HAS a Tracking Number, the cost of which (starting at $14.00) will be added to your invoice accordingly. Please do not send payment until an invoice is received reflecting the correct S&H amount. If you have a problem with your item please contact me before leaving feedback. Also, contact me if you need additional information, additional photos, or if you have any questions.