Can i mail a 9.5x7 bubble envelope with stamps

According to the United States Postal Service (USPS), a 9.5x7 bubble envelope is considered a "large envelope" and requires additional postage.

Here are the guidelines:

• For a large envelope (larger than 6.125 inches high x 11.5 inches long x 0.25 inches thick), you need to use a First-Class Mail Large Envelope stamp, which costs $1.00.
• If your envelope weighs more than 1 ounce, you'll need to add additional postage based on the weight.

Since you're using a bubble envelope, it's likely that it will be heavier than a standard envelope, so you'll need to add additional postage.

Here's a rough estimate of the postage you'll need:

• For a 9.5x7 bubble envelope weighing 1 ounce or less: $1.00 (1 First-Class Mail Large Envelope stamp)
• For a 9.5x7 bubble envelope weighing more than 1 ounce: $1.00 (1 First-Class Mail Large Envelope stamp) + $0.15 (per additional ounce)

For example, if your envelope weighs 2 ounces, you'll need:

• $1.00 (1 First-Class Mail Large Envelope stamp) + $0.30 (2 additional ounces) = $1.30

Keep in mind that these are rough estimates, and the actual postage required may vary depending on the weight and size of your envelope.

To be sure, you can use the USPS Postage Calculator or consult with a postal worker at your local post office to determine the exact postage required for your 9.5x7 bubble envelope.