Double Window Redi-Seal Security-Tinted Envelope, #10, Commercial Flap, Redi-Seal Adhesive Closure, 4.13 x 9.5, White, 500/BX Double window envelopes display sender and receiver addresses for invoices and billing statements. The uniquely designed Redi-Seal® self sealing closure requires no moisture; envelopes have double flaps that press together for an instant seal. Protect sensitive client information with a reflex blue pattern that obscures the details of the contents, even when envelopes are held up to light.
