If your bubble mailer is considered an envelope and weighs 1 ounce or less, you can slap a $0.55 forever stamp on your mailer and drop it off at your post office as usual. If your bubble mailer is considered a package, you'll choose between USPS First Class, USPS Retail Ground, Priority Mail and Media Mail.

How many stamps do I need for a bubble mailer?

If you'd like to use stamps to ship your bubble mailer up to 4 ounces through USPS First Class, it will cost around $3.74. This will take 7 forever stamps ($0.55 per stamp) to ship your bubble mailer.

Do you need a shipping label for a bubble mailer?

To prepare a bubble mailer for shipment, you need a shipping label, a return address label and forms for any additional services. When using a shipping service for metered postage, such as Stamps.com, Pitney Bowes or Endicia, these elements are built into the label.