Blue Summit #10 Pistol Window Envelopes with Gummed Seal, 4-1/8” x 9-1/2” Blank Envelopes, 500/Box$$Office

Perfect for mailing invoices, billing statements, checks, and other business mailings. Strong gummed adhesive with 1” tapered flap creates an easy and safe closure for all sensitive documents. Single pistol window envelope will show the mail recipient’s address through the window. #10 envelopes can hold #9 or #8 return envelopes to help get your invoice paid faster. 500 envelopes per box