The RB4165 Justin Black - Grey RB4165-51-601-8G does what it is supposed to do. Manufacturerd by a quality brand in RayBan, means the RB4165 Justin Black - Grey RB4165-51-601-8G has been manufactured to last. Like all RayBan sunglasses you will receive a manufacturer's warranty, and will be able to send back your RayBan sunglasses in the event you are not entirely happy with your order.