9-1/2″ x 12″ First Class Mail Envelope
This large, first class mail envelope has a single window, near the center of the front.
It is in a portrait layout and has blue ‘first class mail’ triangle icons printed along the edges and FIRST CLASS MAIL printed near the bottom.
Seal Type: Self Seal or Moisture Seal
Size: 9.5″ x 12″
Paper Weight: 28#
Flap Opening: Short End
Window: Single, Cellophane
Top Window Size: 2″ x 6″
Top Window From Left Side: 2″
Top Window From Bottom: 4-13/16″
Tax Software Compatibility: ATX™, CS UltraTax™