I recently got my first pair of prescription eyeglasses at the age of 43.  The cheap case that came with my glasses wasn't sturdy enough to hold up to being carried around in my back pocket, so I wanted a case that could handle the pressure. The metal fliptop eyeglass case was exactly what I was looking for.  I wanted the strength to protect my eyeglasses if they are in my back pocket and I sit down on them, such as will be the case when I am riding amusement rides at Disneyland.  I have been carrying this case around with me for a week now and it has yet to show even a dent.  I'm very happy with my order.