There are various types of float used in coarse fishing, but the waggler is perhaps the most popular these days. They're easy to set up, and allow for a stable, relatively tangle-free presentation that works with all kinds of baits on all kinds of fisheries. In simple terms, wagglers are floats that are attached by the bottom end only. This makes them easy to rig, because you can simply pinch them in place on your main line with split shot. This type of float also gives good stability, with the angler able to sink the line into the water, beating surface tow and debris.