Envelope selection box assorted whitemanilla whitemanila envelope selection box ub70062 ideal for all of your business mailroom needs this envelope selection box makes selection that little bit easier coming in a handy display box which makes finding the right envelope quicker the assorted collection includes c4 and c5 envelopes in both white and manila along with c4 board back envelopes in manila so whether you are mailing personal or business letters or important documents you