Participation in any such Revolving Facility Increase may be offered to each of the existing Lenders, but no such Lender shall have any obligation to provide all or any portion of any such Revolving Facility Increase. The Borrowers may invite other banks, financial institutions and investment funds reasonably acceptable to the Administrative Agent (such consent not to be unreasonably withheld or delayed) to join this Credit Agreement as Lenders hereunder for any portion of such Revolving Facility Increase; provided that such other banks, financial institutions and investment funds shall enter into such lender joinder agreements to give effect thereto as the Administrative Agent may reasonably request.