Qualitypark QP Reveal-N-Seal™ Double Window Env Unique adhesive application provides a strong, moisture-free secure seal. Three-year shelf life is six times longer than standard latex adhesive envelopes. Small perforation along flaps can reveal evidence of tampering. Envelope Size: 3 5/8 x 8 5/8; Envelope/Mailer Type: Double-Window; Closure: Self-Adhesive; Trade Size: #8 5/8.

Product Specifications  Manufacturer #: QUA-67539 Product Details QP Reveal-N-Seal™ Double Window Env, Paper Stock, 3 5/8 x 8 5/8, WE, 500/box Closure: Self-Adhesive Color(s): White Envelope Size: 3 5/8 x 8 5/8 Envelope/Mailer Type: Double-Window Exterior Material(s): Paper Stock Security Tinted: Yes Trade Size: #8 5/8 UPC: 00000000000000 Keywords: Envelopes, Mailers, Mailing & Shipping Supplies