“Not only does it fit perfectly and snugly on the silipint cups mentioned, it also saved my favorite stainless steel coffee tumbler from a convenience store. The plastic lid with rubber seal broke and after trying to purchase a replacement 3x (none of which fit like they were supposed to)...by happy accident, I realized the silipint coffee lid fits perfectly so now I don't have to throw out my cup. Way to go and save the day!”