Security business envelopes feature a blue inside tint to protect your privacy. No. 10 envelopes include white wove 24 lb. stock and a contemporary seam.

Quality Park #10 Security Tint Envelopes - Security - #10 - 4 1/8" Width x 9 1/2" Length - 24 lb - Gummed - Wove - 500 / Box - White