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Home >> Main Catalog >> Art-Supplies >> Clear-Envelopes >> Clear Envelopes (cellophane envelopes).Clear-Envelopes >> Clear Envelopes - 100 - Square 5 4 x 5.3 Clear Envelopes - 100 - Square 5 4 x 5.3 Dimensions: 5 7/16" x 5 5/16" + 1" self-adhesive flapMeasurements guaranteed accurate with a variance of +/- 1/16". Opening Width: 5 7/16"The first dimension given is always the opening width. For mailing, USPS requires
that the opening be the longer of the two numbers, so this is a perfect envelope
for mailing (see additional information below about mailing requirements). Used for:Great for: 5 1/4" x 5 1/4" card without envelope or 5" x 5" card with matching envelope, cds in jewel cases. Thickness and Construction:These are biaxially oriented Polypropylene with 1.6 mil wall thickness. Mailing through USPS:For mailing, USPS requires that the opening be the longer of the two numbers, so this is a perfect envelope for mailing. These clear envelopes, so long as the flap is on the long side of the mail-piece, are approved by USPS for mailing up to 13 ounces through first-class mail . Be sure to use self-adhesive postage stamps. You can affix a mailing label to the outside or slide the mailing address on a peice of paper inside the envelope to viewed through the plastic. These are considered non-machinable and have to be hand-canceled. No specific notation is needed on the outside of the envelope but add 20¢ extra postage in addition to a regular letter postage. This extra charge does not apply if the weight is over 1 ounce, then regular postage rates include the non-machinable surcharge. Archival Safe:These are made from 100% virgin polypropylene which is naturally acid and lignin-free.
These are "museum quality" archival-safe products.
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