Oros strike indicators enclose fastening hardware inside of two foam hemispheres. When closed, the foam compress creating a pressure fit lock that keeps it on the line and in place, without kinking. Large screw threads make securing it to the line effortless, and it it's even easier to lock in place with wet hands.
Strike Indicators Don’t Have To Be Frustrating
“Strike indicators are a pain to use. They have tiny parts to fumble and lose, or are not balanced on the line. Some have parts sticking out that get tangled. Applying, adjusting and removing strike indicators from the line is challenging in the best of conditions, let alone when it is cold. I haven’t found the perfect strike indicator until now.”