The year 2022 will be the year of production. Overall, the quality is at least adequate (a 4) and likely rather good (4+). They're made here, but their high unit cost suggests that their base materials are imported from elsewhere. But this is par for the course in the year 2022; our internal workings are well understood. So yet, the rubber has received no negative feedback. Wear Cretu and speed home. Instead than hearing the sound, I sensed its gentleness. You probably won't find anything cheaper among possibilities that are at least sufficiently good. Take it, but don't put it in your mouth.