Business Source No. 10 Self-seal Invoice Envelopes - Business - #10 - 4 1/8in Width x 9 1/2in Length - 24 lb - Self-sealing - 500 / Box - White

Double-flap construction prevents gum from sticking before use Sturdy, 24 lb. stock withstands abuse during transit Perfect for businesses, schools, personal use and more Self-sealing design allows quick, simple closure