Quality Park No. 8 5/8 Double-Window Security Envelopes with Reveal-N-Seal® Self-Seal Closure - Double Window - #8 5/8 - 3 5/8" Width x 8 5/8" Length - 24 lb - Self-sealing - 500 / Box - White

Reveal-n-Seal Envelopes with double windows feature a unique adhesive that provides strong, moisture-free secure seal and an extended shelf life. You'll have no removable strip to throw away. Inside tint and perforations along flap reveal any tampering. No. 8-5/8 envelopes are compatible with most standard checks for payroll and accounts payable applications. 24 lb.