The Dial Vision glasses received in mail were very cheaply made. Lens were distorted and mechanical adjustments did not function at all. If you are looking to purchase these online or via cell phone don’t bother. You will be very disappointed. I basically flushed my considerable amount of money away on a worthless piece of eyewear. I am disappointed and wish there was a way to get my hard earned money back from this company. There is no phone number/email to report the problem to.