500 Pack - #10 Certified Mail Envelope w/out Processing

500 pack of #10 Certified Mail Envelopes, full face window. This product does NOT include processing using the Certified Mail Envelopes, Inc. Certified Mail processing system. USPS approval of this product is only in conjunction with the processing provided by Certified Mail Envelopes, Inc. All orders shipped USPS Priority Mail (2-3 day service)