This little eraser is nice to have on snowy days. It generally gets most of the snow off your goggles. Sometimes it leaves streaks on your lens, but it is never a big problem. The biggest problem I have is getting it out of my pocket with gloves on. It is pretty small and can be hard to grasp sometimes with gloves. Once you get it, it is easy to wipe your lenses free. And it is so small, why not have it?