Quality Park Envelope, Clasp/Gummed, 10"Wx13"Lx1/10"H, 100/BX, Manilla (QUA38497) Box of 100Heavy duty envelopes feature both a clasp closure and gummed flap to give you the option to seal it permanently or allow access to your contents for repeated use. Large, wide opening helps you easily insert and remove items to prevent tears. Thick construction prevents visibility of your sensitive items for secure, extended use. Size 97 envelopes are perfect for filing, storing, mailing or organizing documents. General Information Manufacturer: