#10 Regular Envelopes (4 1/8 x 9 1/2) - Airmail (50 Qty.) | Business | Perfect for Checks, Invoices, Letterhead, Letters, Statements, Direct Mail | Printable | 24lb Text Paper | 92908-50 Size: #10 Regular Envelopes 4 ? in x 9  in / 4.125 x 9.5 / 104.775mm x 241.3mm Quantity: Pack of 50 Color: This envelope features a classic red and blue "airmail" design with "par avion" text. This envelope is made from quality 24lb paper. Opaque and not see through. Standard Commercial Flap. USES: Checks, Invoices, Letterhead, Personal Letters, Statements, Bills, Flyers. Applications: Business Mailings, Direct Mail, Corporate Mailings, Financial Mailings, Personal Mail. Printable on off-set printing presses and some home printers.