These are compact and lightweight line markers by Willow. To activate the light, simply pull the tab and attach the marker to your fishing line between the first and second eyelets of the rod. After use, insert the tab back into the housing to turn off the light. When the light expires, there is a small hole at the back of the housing for easy removal of the old light, allowing you to replace either the battery or the entire unit. When attaching the tab, ensure it is oriented towards the open part of the light. 4 per pack
