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 - White - 500 / Box. Single window positioned 7/8" from the left and 1/2" from the bottom for a mailing address. Reveal-N-Seal, self-sealing closure - simply pull the flap up and press to seal; built-in perforations along flap show evidence of tampering attempts.