Works great - Brunton Ball Compass Pin-on Luminescent 9067

Works as advertised. I've been using this outdoors on my paintball gear for about a year now with no issues, and it's put up with an awful lot of abuse. North is still north, and it's still pinned to my vest despite rolling around the woods constantly.
Pros: No issues after 1 year
Cons: None

This review was written in the old system and had content requirements that are different than reviews written today.