The largest envelope within the standard size that can be sent at the lowest possible prices, with non-standard mailings weighing up to 2.2 lbs (1 kg).
Non-standard mail can be divided into size and weight.
Standard size: Maximum size up to 9.8 x 13.4 x 1.2 inches (25 x 34 x 3 cm). Weighs within 2.2 lbs (1 kg).
These Kraft Envelopes are made with standard largest size mail.
A4 size or less than 1.2 inches (3 cm) can be used to store items with ample room.
Because it is a standard size within the postal standard, it can be sent at a lower cost compared to non-standard size by mail if it weighs within 2.2 lbs (1 kg).
Easy to apply with one touch tape.
Recommended for those who want to reduce postage fees, such as shipping items via Flima apps or auctions.

Size (W x H x D): 9.8 x 13.4 x 1.2 inches (250 x 34
Compatible Size: A4
Made in Japan
Pack of 2

These envelopes are designed to be the maximum size of "within standard" for non-standard mail.
Please be aware that if you put your items in until it is expanded, there is a chance of partnership to be "non-standard" post.

Product Name: Okina HP3059 Envelopes, Non-Standard Mailing Envelopes, A4, Gusset, One-Touch Tape, 2 Pieces

From the Manufacturer

Gusseted envelopes for the lowest possible non-standard mail.

Non-standard mailers are sized and weight and are separated within and out of the standard.These envelopes are 10" wide x 13.4" high x 1.2" deep and are designed to be the largest size of the standard.

If you put your items in the bag until it is expanded, it may be out of the standard. Comes with a tape for convenient sealing.