Quality Park No. 10 Business Envelopes with Self Seal Closure - Business - #10 - 4 1/8" Width x 9 1/2" Length - 24 lb - Self-sealing - White - 500 / Box

No. 10 business envelopes use a self-seal closure for convenience with standard business mailings. Redi-Seal closure requires no moisture, extends shelf life and provides a secure seal. Double-flap design keeps the gum from sticking before use. Contemporary side seams and 24 lb. bright-white stock give your mailings a professional look.