Hello! I would like to share my experience: we purchased paper cups from https://mcdonaldpaper.com/safepro-rw10s-10-oz-quot-smile-quot-ripple-cups-assorted-colors-500-cs/ for office tea breaks. Previously, we often encountered thin and inconvenient cups, but these are completely different. They retain heat well, do not leak, and the lids fit perfectly. It is convenient that you can order a large quantity and not worry about quality.