Do these keep front of you fingers warm, my palms are not the issue just the front of my fingers, also 60 is alot, do they expire?
Yes and no, depends on your blood flow to your fingers, and how good your gloves are. . They are better than nothing, but my experience with them working on horse farms in the dead of winter is that you have to get them directly on the extremity you want to keep warm unless your gloves/boots are extremely well insulated so that they can heat the area overall.
And yes, they do expire...albeit I think it's a few years. Old ones really just don't heat up anymore.