Standard mail stamp

You're referring to a traditional postage stamp!

In the United States, the standard mail stamp is commonly known as a "Forever Stamp." It's a type of postage stamp that has a value of $0.55 (as of 2022) and can be used to mail a 1-ounce letter within the United States. The Forever Stamp is valid for first-class mail, including letters, postcards, and greeting cards.

The Forever Stamp is a popular choice for mailing letters because it's convenient and can be used for both domestic and international mail. The stamp is also a great way to add a personal touch to your mail, as you can choose from a variety of designs and themes.

Some interesting facts about Forever Stamps:

  1. The Forever Stamp was introduced in 2007 to simplify the postage process and make it easier for consumers to mail letters.
  2. The stamp's value is adjusted periodically to keep pace with inflation, so the value of the stamp may change over time.
  3. Forever Stamps can be used to mail letters weighing up to 1 ounce, but additional postage is required for heavier letters.
  4. You can use Forever Stamps to mail letters to any address within the United States, including military addresses and U.S. territories.
  5. Forever Stamps are also valid for international mail, but additional postage may be required depending on the destination and weight of the letter.

I hope that helps!