Customer acknowledges and accepts the following: Slight variations in color, veining, pattern movement, background tone, particulate distribution, and finish are inherent and acceptable within normal manufacturing tolerances. Exact duplication of samples, previous production runs, photographs, or competitor materials cannot be guaranteed. Approved samples serve as the standard reference for production; however, final production may contain commercially acceptable variations. Customer is responsible for reviewing and approving all samples prior to production. Once production begins, manufacturer shall not be responsible for claims related to approved aesthetic characteristics including: