Health Claim Insurance Envelope, 9 x 12.5, 28 lb White Wove, Single Window, Security Tint, 100 EA/BX

9" x 12-1/2" Health Claim Insurance Envelopes simplify mailing preparation. Durable, claim form envelopes are made of 28 lb. white wove stock to withstand extensive handling in transit. First-class border lets your recipient know that something important is in their mailbox. Contents are protected during use to give you assurance that they arrive unharmed. 9" x 12-1/2" size accommodates forms without folding. Single window displays an address. Moisture-activated flap features deep gumming for a secure seal. Envelopes are perfect for Medicare Form HCFA-1508 and other healthcare forms.