"Universal Office Products 36101 Self-Seal Security Tint Business Envelope, #10, Square Flap, Self-Adhesive Closure, 4.13 x 9.5, White, 500/Box - Box o"
$54.72
"No moisture needed to seal, simply raise the lower flap and press. Unique double-flap design keeps the gum from sticking before use. Double flap keeps contents secure."