High-Quality #10 Double Window Security Envelopes – Perfect for Business & Mailing Needs Upgrade your mailing with premium Aimoh security envelopes. Designed for businesses, offices, and bulk mailing, these envelopes feature a strong quick-seal adhesive and security tint lining to protect sensitive information. ✔ Double window design (ideal for invoices, billing, statements) ✔ Quick seal / self-adhesive – no licking required ✔ Security tint inside for privacy ✔ Clean, professional appearance ✔ Brand new, never used 📦 Quantity: 500 envelopes per order 📦 Bulk discounts available – message for larger orders 🚚 Fast shipping from California Perfect for: Small businesses Offices Billing departments eCommerce sellers