The product is an Air Mail U.S. Postage block of 4 stamps, each with a denomination of 10 cents. These stamps feature a black color and are Mint Never Hinged (MNH), indicating they are in pristine condition. The stamps originate from the United States and are related to the topic of aviation. This block of 4 unused stamps has a total face value of 40 cents and is suitable for stamp collectors or enthusiasts interested in aviation-themed postage stamps from the United States. Tracking number provided with shipping cost.