Features: Real Postage Stamps These are real postage stamps that can mail letters, envelopes, and others, They can cover the international rates the first time, USPS serves any country with a one-ounce letter. One stamp is one ounce. Forever Stamps These postage stamps are valid USPS forever postage stamps that can be used at any time, you can send mails no more than 1 ounce by USPS. Saving Your Time and Money No need to waste your time and money on the way to the post office for stamps! Our postage stamps are very convenient and also at a nice price! Easy Use With self-adhesive, convenient to use. Not only great for postcards, letters, mailing envelopes, or collecting but also suitable for collectibles, birthdays, weddings, parties, celebrations, and so on. Brand new booklet of 20 Forever postage stamps The design features small green lines surrounding the blue planet. Self-stick adhesive stamps Forever stamps are always valid with USPS for first-class, one-ounce postage Perfect for mail or as a collectible