My friend wanted a visor which didn't go the whole way round her head, so that it didn't ruin her hair style. She has problems with her eye sight, so needs to protect her eyes from bright light.
This visor fits the bill perfectly. She likes it so much that she'd like to get it in other colours, unfortunately bowling gear only seems to come in white.
The only issue she has had is if she wears it for a few hours or more the ends of the clips dig into her head and hurt. But they need to be that tight to stay in place.