These fishing bobbers are made of high quality Balsa wood, which has high buoyancy, good stability and durability. The surface of the floats is painted with buoyant colors, so when the fishes are taking the baits, you can take actions immediately. It's easy to use because it has a latex sleeve that you cut it in half and you pass the line through them, then your lines and bobbers will be firmly fixed. The latex sleeves allows for quick adjustment of depth, while maintaining the line integrity. There is a weighted clip designed which can greatly improves your casting distance and performance.