The listing, *6 STAMPED FIRST CLASS ENVELOPES* Read Please has ended.
Some of you are commenting that these are stamped .48 -
you are very corrrect, however, if you can please read the below statement which is a copy & paste from the USPS page, you will understand that each of these envelopes will in fact be accepted by USPS as .49 postage. It's only a discount for metered mail. :)
USPS First Class Letter Meter Rate
While the USPSĀ® rate for a First-Class letter is 49-cents ($0.49), metered clients receive a $0.485 rate.
Note: This rate is effective as of May 31, 2015.
The USPS discount is on all First-Class letters up to 3.5 ounces for metered mail. The $0.485 cent rate is automatically applied when you use a Postage Meter, PC Postage or Permit Imprint. The price of a stamp is $0.49.