Quality Park No. 10 Single Window Security Tinted with Reveal-N-Seal® Self-Seal Closure - Single Window - #10 - 4 1/8" Width x 9 1/2" Length - 24 lb - 500 / Box - White

Reveal-n-Seal Envelopes with a window feature a unique adhesive that provides a strong, moisture-free secure seal and extended shelf life. You'll have no removable strip to throw away. Privacy of contents is enhanced by security tint and perforations along flap that show evidence of tampering. Envelopes are made of 24 lb. stock.