Quality Park 8 5/8 Security Envelopes, Double Window, Self Seal Envelopes For Invoices/Statements, 3-5/8" X 8-5/8", 24 Lb White, 500/Box (QUA24539)

8 Double Window Security Check Envelopes, No.8 Double Window Bussiness Envelopes Designed For Quickbooks Checks - Computer Printed Checks - 3 5/8 X 8

Staples 8 Business Envelopes, Double-Window, Security-Tinted Gummed Flap Closure, 8-5/8 X 3-5/8 Inch, 500-Pack, White

Staples 8 Business Letter Envelopes, Double-Window, Security-Tinted, Self-Seal Closure, 8-5/8 X 3-5/8 Inch, 500-Pack, White

Columbian 8 5/8 Security Envelopes, 500/Box, Double Window, 3-5/8" X 8-5/8", Redi-Seal Self Seal, Invoices & Quickbooks Statements, White (COLO182)