500#9 Single Window Security Envelopes, Thick Gummed Seal, Designed for Secure Mailing of Payroll Checks, QuickBooks Invoices, Return Mail, and

500#9 Single Window Security Envelopes, Thick Gummed Seal, Designed for Secure Mailing of Payroll Checks, QuickBooks Invoices, Return Mail, and

Perfect for mailing payroll checks, QuickBooks invoices, billing statements, confidential documents, and other business mail. No need for tape or glue sticks as our strong gummed seal creates a hassle free and safe seal for all your sensitive documents. Provides complete business mail security: your professional business mail will be completely hidden with our dark security tint design Create professional looking mail with the added security of a single window envelope. Your business mail recipient address will show through the single window and you can quickly print your return address or add return address labels Tamper proof design with our hot melt glue adhesive manufacturing process that allows the glue to penetrate the envelope, thus causing the envelope to tear if you open after sealing

Save time and money sending business mail with our number 9 Single Window Security Envelopes

Quickly and easily send hundreds of business invoices, bill statements, and checks with our number 9 envelope design and cost-effective gummed seal.

Our gummed flap with thick adhesive makes for quick and easy mass mailings.

Saves you money on bulk business mailing of business statements, invoices, or checks

Works great as a return envelope, so you can get paid faster

Business mail will be completely secure during transit

It can be so difficult to find envelopes that create a strong lasting seal thus forcing you to waste time using glue sticks or tape to close the envelopes. Our #9 single window envelopes with strong adhesives are designed to immediately create a strong seal so you do not have to worry about your contents being exposed to others.

Unlike weak sealing envelopes that allow your contents to fall out and become exposed; so much for a security envelope. Our strong seal will guarantee the safety of your contents.

It can be frustrating to purchase envelopes only to find them flimsy enough to have you worried about their durability during transit. Our envelopes are made of 24 LB White wove paper that will provide a professional look from the box all the way to your destination.