Spring Bobbers
Spring bobbers are typically round and come in various diameters. These bobbers feature a small button on the top, with an internal spring and a metal wire and hook running through the bobber itself. Spring bobbers work by pressing the button on top, which causes the metal wire to move downward and the small hook to become exposed. The fishing line is placed inside the hook, the button is released, and the bobber is held against the line by the tension of the spring. These bobbers are usually inexpensive and are readily available where most tackle is sold.
Cigar Bobbers
Cigar bobbers are typically 3-4 inches long and hollow inside. The fishing line is threaded through the bobber, which is positioned a few feet above the hook and bait. A small plastic or piece of cork is placed in the top of the bobber, which wedges the line in place. Wedging the bobber in place prevents it from sliding up and down the line and potentially spooking fish.
Nighttime Bobbers
Another bobber is designed to be used in low light conditions such as at dawn, dusk and even at night. These bobbers are usually elongated--up to 5 or 6 inches in length. They may be constructed of plastic, wood or even cork. Nighttime bobbers will usually have a fluorescent glow for easier spotting. Many nighttime bobbers feature an insert, which may be removed during daytime fishing. The insert contains glow-in-the-dark material. When exposed to bright lighting, the insert will glow for up to several hours.