Our floats are brighter than the rest. The shock-resistant LED never needs replacing. Our floats are powered by two 1.5 V button cell batteries. Batteries are included with each Night Bobby. Batteries are also available separately in replacement packs. We use the highest quality materials for our float bodies which are designed to spread light and improve visibility. The unique Line-Lock line attachment allows for use as a slip or fixed position float. Float can be removed without cutting line, removing bait, hook or sinker.