• US #10 business envelopes are suitable for many mailing projects
• Made from white 24 lb. wove paper for durability
• These envelopes measure 4 1/8"H x 9 1/2"L in size, providing enough space for your mail
• Gummed closure with commercial flap keeps contents in place
• 500 envelopes per box
• The flap is on the long side for easier filling

Make a lasting impression by sending your most important documents with these premium diagonal-seamed envelopes. High-quality, 24-pound paper protects letters through all steps of the mailing process to ensure documents arrive in the condition that they were sent. The durable seam construction of these white envelopes allows for a larger paper capacity than others. Since the #10 envelopes are compatible with automatic filling machines, you no longer need to stuff your large mailing lists by hand. Best of all, you can buy in confidence with a 100 percent product guarantee.

Professional Appearance
Friends and colleagues are sure to notice the clean and crisp look of these premium white mailers. The gummed envelope flaps close securely to ensure the security of your correspondence from its departure to its arrival.

Compatible With Auto-Insertion Machines
These premium Staples envelopes are ideal for use with auto-insertion machines, making those large projects quick and easy to handle. With a bulk of 500 envelopes in each box, you can rest assured you won't run out any time soon.

Durable Seam Construction
These envelopes are made of sturdy, 24-pound paper with diagonal-seamed construction for additional strength and capacity relative to other mass-mailing envelopes.