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 7/8 x 8 7/8; Envelope/Mailer Type: Double-Window; Closure: Self-Adhesive; Trade Size: #9.

Product Specifications  Manufacturer #: QUA-67529 Product Details QP Reveal-N-Seal™ Double Window Env, Paper Stock, 3 7/8 x 8 7/8, WE, 500/box Closure: Self-Adhesive Color(s): White Envelope Size: 3 7/8 x 8 7/8 Envelope/Mailer Type: Double-Window Exterior Material(s): Paper Stock Security Tinted: Yes Trade Size: #9 UPC: 00000000000000 Keywords: Envelopes, Mailers, Mailing & Shipping Supplies