Compare flares, rings and decorative bases
Look for the shape, span and part you can grip.
Check the external feature in two views
A flared base, a ring and a decorative face have different profiles. A photo from the front can show an opening or trim and hide thickness. A side view helps show where the base begins and how far it extends.
Confirm the base is designed to stay outside
Choose a model made for anal use with an appropriate flared base that stays outside. Ask the manufacturer how the external feature works if a photo or product name is unclear. Stop using any item with a damaged base or loose trim.