Save Time and money Sending Business mail with our #10 Security Envelopes Quickly and easily send hundreds of business invoices, bill statements, and checks with our #10 envelope design and cost effective gummed seal. Our gummed flap with thick adhesive make for quick and easy mass mailings. Saves you money on bulk business mailing of business statements, invoices, or checks Enough room for return envelopes 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 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 fail out and become exposed, So much for a security envelope, Our strong seal will guarantee the safety of your contents. 24 lb. White Wove Paper that creates a professional look and feel from out of the box all the way to your destination

Perfect for mailing Invoices, QuickBooks Invoices and checks, billing statements, checks, 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 Your contents will stay sealed during transit with your strong gummed adhesive and unique 1" tapered gummed flap 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 Save time quickly stuffing multiple pieces of business mail in our wide and large #10 Security Envelope Design You can even stuff smaller #9 or #8 return envelopes to get your invoices paid quicker