HCFA Imprinted Self Seal Envelope
9 1/2" X 4 1/8" (Envelopes)

Insurance envelopes perfectly sized to accept HCFA CMS1500 & other insurance claim forms. Right window. Accepts standard HCFA CMS1500 claim form. Self-seal saves time and makes mailing easier. SIZE: 9 1/2" X 4 1/8"