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Our self-sealing double window envelopes are the perfect companion product for our computer business checks. The double windows conveniently display name and address information—while the security tint shields confidential check information from snooping. Compatibility. These standard no.9 envelopes are ideal for both checks and invoices. Convenience. Double windows display name and address information. Protection. Security tint hides private information. Screening. All orders undergo examination to identify and prevent unauthorized purchases.
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We currently ship within the US, with more countries coming soon.
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🇺🇸 Ship from USA · On Agora since 2025
$19.95