Envelope Categories:
Envelopes come in various styles to suit personal and professional needs. Categories include business envelopes (standard sizes for correspondence and documents), window envelopes (with a transparent panel for addresses), padded envelopes (for secure mailing of fragile items), invitation envelopes (elegant designs for events), and customized envelopes (branded designs for unique identity). Available in different sizes, colors, and materials, envelopes can be tailored for functionality and style.

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