Executive acknowledges that all files, lists, books, records, photographs, videotapes, slides, specifications, drawings or any other materials used or created by Executive or used or created by Employer in connection with the conduct of its business, shall at all times remain the property of Employer and that upon termination of employment hereunder, irrespective of the time, manner or cause of said termination, Executive will surrender to Employer all such files, lists, books, records, photographs, videotapes, slides, specifications, drawings or any other materials.