Professional 9×4 inch white envelopes made from sturdy 90 GSM paper. Perfect for mailing invoices, statements, checks, and important documents. Clean, opaque finish that keeps contents private. Exact dimensions (9" × 4" / 225 × 110 mm) Paper weight: 90 GSM for enough opaqueness for covering documnets Quantity: 250 pcs per box Color: Standard white Closure: Non Gummed flap Suitable for: laser printers, inkjet, handwriting Opacity of envelope for safe mailing Useful for:Invoices, bank statements, legal docs, marketing mailers, office stationery. Why choose this : 90gsm Thickness that prevents show-through, consistent sizing for automated stuffing, bulk value