Quality Park No. 10 Single Window Security Tint Envelopes - Single Window - #10 - 4 1/8" Width x 9 1/2" Length - 24 lb - Adhesive - White - Wove - 500 / Box

No. 10 Security Tint Window Envelopes are essential for your business. Reflex blue pattern protects sensitive client information and is impossible to see the details of the contents even when held up to light. These 24 lb. white wove envelopes feature a traditional diagonal seam that's compatible with automated inserting and folding equipment. 4-1/8" x 9-1/2" envelopes include a moisture-seal commercial flap. Single window measures 1-1/8" x 4-1/2" and is positioned 7/8" from the left edge and 1/2" from the bottom.