500 #10 double window self seal security envelopes - for invoices, statements & documents, security tinted - enveguard, size 4-1/8 x 9-1/2 -white - 24 lb - 500 count (30001) aimoh 500 #10 double window self seal security envelopes - for invoices, statements & documents, security tinted - enveguard, size 4-1/8 x 9-1/2 -white - 24 lb - 500 count (30001)