Snapped this onto my phone case and the ring feels solid without adding much bulk. The stripe design gets a few curious looks, which is exactly what I wanted.
Eva★★★★★
The red and silver stripes look exactly like the cup series, which is why I grabbed it. The ring itself sits flat against the phone and hasn't loosened at all after a couple weeks of daily pocket use.
Emily★★★★★
The red and silver stripes look even better in person than on the site, and the ring sits flat enough that my phone still slides into my pocket fine. Popped it on the back of my case in about a minute and it hasn't budged since.