i’m not a coffee drinker but they worked well on my regular glasses as well. the next run was on 114 devices. when we leave for football practice. we’re as hungry for fresh ingredients as we are for fresh thinking. our company offers the highest quality while saving you money. the scope is not waterproof or water resistant. it was time to get back to work. 8-foot power cord with plug. some things need to be gone for awhile but will sprout up again when their season in our lives return. this provides the fastest cut and shine on the market! 