Southworth 25% Cotton #10 Envelopes, 4.125" x 9.5", 24 lb/90 gsm, Wove Finish, White, 50 Ct. (P554-10) premium 24 lb. envelopes for professional and special occasion correspondence Color: White in linen finish 50 fine #10 business envelopes; Size: 4.125" x 9.5" Compatible with inkjet, laser printers, and copiers Ideal for mailing documents, invoices, presentations and much more