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#9 Double Window Security Envelopes, HERKKA No.9 Double Window Business Envelopes Designed for Quickbooks Invoices and Business Statements - Number 9 Size 3 7/8 Inch X 8 7/8 Inch - 24 LB - 500 Pack
- 500 Pack Self Seal Envelopes
- Premium Security Check Tint Envelopes
- Double Window Design
- Quick-Seal Closure
$27.99
Price as of Oct 16, 2026, 7:47 AM UTC. Prices and availability are subject to change. The price shown on Amazon at the time of purchase applies.
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Key features
500 Pack Self Seal Envelopes
HERKKA No9 Security envelopes are designed with Peel and Seal closure-no moisture needed and a premium security tint to protect sensitive information and a super strong SELF-SEAL strip. Suitable for home or office; securely send checks or other confidential documents.
Premium Security Check Tint Envelopes
The interior of our No9 Security envelopes use a dark navy, heavy coverage security tint to provide the protection contents and sensitive information, a security tint makes envelopes hard to see through that ensures upmost privacy.
Double Window Design
Only sender and return address will show on your QuickBooks invoices and monthly bills through our unique 2 window . No show of memo, Payee line or amount in windows. Suitable for QuickBooks Invoices and business billing statements.
Quick-Seal Closure
Our No9 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing for any letter sized and larger documents without splitting.
Long Lasting Supply
Large sized envelopes and 500 envelopes in every pack for a long lasting supply, suitable for everyday business correspondence and large mailing tasks! Click the Orange Button to order now.
#9 Double Window Security Envelopes, HERKKA No.9 Double Window Business Envelopes Designed for Quickbooks Invoices and Business Statements - Number 9 Size 3 7/8 Inch X 8 7/8 Inch - 24 LB - 500 Pack
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