#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 ✓ Free 60 Day Returns ✓ Free Express Shipping Description: 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 Count 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. Perfect 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 guaranteed privacy for your legal or business mail, offer 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. Perfectly fits 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, perfect for everyday business correspondence and large mailing tasks! Click the Orange Button to order now. Product Details: Brand: HERKKAColor: BlueClosure Type: Self-SealNumber of Items: 500Special Feature: Self AdhesiveManufacturer: HERKKABrand: HERKKAItem Weight: 5.9 poundsProduct Dimensions: 8 x 7 x 0.01 inchesItem model number: No9-2Win-LixingColor: BlueClosure: Self-SealShape: RectangularNumber of Items: 500Size: Self Seal-BlueManufacturer Part Number: HERKKADate First Available: March 13, 2020