I saw a thread with guys asking for marker lights to use with their hoop nets. These work way better than those chemical glow sticks. I hear they last a long time too. I picked up some of these last year but never got a chance to use them until Saturday night. These things are the shit for marking your Lobster buoys! I put mine in a empty 9oz. water bottle to keep em dry. Zip tie em to your buoy, they are visible from at least 500 yards or more. $2.50 a piece at Walmart. They come in Red,Green and Blue. The different colors really help keeping track of which hoops are which and when they were set.