1. Size: 4.5″ x 9.5″ – Standard for Business Documents

This envelope is White Envelope 4.5″ x 9.5″ ( Window ) Peel & Seal , commonly referred to as a DL envelope. It’s perfectly sized to hold:

• A4 sheets folded into thirds (tri-fold).

• Cheques.

• Payslips

• Letters, invoices, and bank statements

Its dimensions make it ideal for everyday office mailing and professional presentation.

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2. Window Feature: Clear Panel for Address Visibility

One of its standout features is the transparent address window, usually positioned on the lower left side. This allows:

• The recipient’s name and address (printed on the letter inside) to show clearly

• Time savings—no need to handwrite or label each envelope

• Consistent branding for mass mailings

It’s especially useful for automated payroll systems, invoice mailing, and government or banking documents.

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3. Seal Type: Peel & Seal – Clean and Secure

Forget about licking or gluing. The Peel & Seal closure system is simple and hygienic:

• Peel off the protective strip

• Fold the flap down for a strong, tamper-proof seal

• No water or adhesives required

This feature increases mailing speed and is ideal for bulk handling in offices or mailrooms.

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4. Material: White Bond Paper – Professional Finish

Made from high-quality white bond paper (typically 80–90 GSM), this envelope offers:

• A smooth, matte finish for a clean, professional appearance

• Opaque inner lining to protect contents and ensure privacy

• Durable construction to withstand handling during transit

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5. Application: Versatile and Business-Ready

This envelope is perfect for:

• Payslips

• Confidential letters

• Financial statements

• Invoices

• Legal notices

• Any document that requires both privacy and address display

Its professional appearance makes it suitable for both corporate and government use.

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6. Environmental Consideration

Many peel & seal envelopes today are made with recyclable paper and eco-conscious adhesives, making them more environmentally friendly than older glue-seal formats.

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Set Ranking: 9.3/10 – Convenient, Clean & Professional

The White Envelope 4.5″ x 9.5″ (Window) Peel & Seal scores a strong 9.3 out of 10, based on: ✅ Time-saving design
✅ Secure peel & seal closure
✅ Professional appearance
✅ Ideal size for tri-fold A4 documents

Its only limitation might be that it fits only standard-sized folded sheets—but for general office use, it’s a top performer.

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Conclusion

The White Envelope 4.5″ x 9.5″ (Window) Peel & Seal is a reliable, smart, and efficient choice for daily office correspondence. With its clean design, secure closure, and time-saving address window, it meets the demands of busy HR departments, finance teams, and administrative staff. Whether you’re sending out hundreds of salary slips or a single important invoice, this envelope ensures your message arrives safely—and looks great doing it.

It’s the little details like this envelope that keep offices running smoothly and professionally.