To keep absolutely on hand in the car ... I saw since I use them to drive at night. We are no longer dazzled by the headlights of other cars, we do not force on the eyes, it soothes and it relies heavily. The practical side of this mount is that it is possible to put them over his glasses ... They are certainly impressive enough, but worn, they are not all that ugly Rimmed now are quite the rage ... His little extra is that they are open on the side, so you might not feel like you have blinders that obstruct the vision 180 ° ... Really satisfied, very good value