9 x 12 Catalog Envelope - 70# Eclipse Black (9 x 12) - Astrobright Jumbo Series (Open End) (Box of 500) A Quantity of 500 - 9 x 12 Catalog Envelope - 70# Black 70# Black Paper - Regular Gummed Flap Great for mailing or interoffice use. Use to mail booklets, catalogs, brochures, letters, catalogs, certificates, statements, invoices, and more. This envelope may be sourced from any one of a number of top brands. Ships via UPS Ground