Make mailing quick and convenient with these 10 × 4.5 inch white envelopes, made from durable 90 GSM paper. Featuring a convenient Peel & Seal self-sealing closure, these envelopes can be securely sealed without the need for glue or moisture, making them ideal for fast and hassle-free mailing. The clean white finish provides a professional appearance, while the sturdy paper construction helps protect letters, invoices, bills, documents, and business correspondence during handling and transit. With 250 envelopes per box, they are suitable for offices, businesses, schools, institutions, and bulk mailing requirements.