The Predator Arcos II did so well they had no choice but to give us a Magnetic version of the cue ball. The Arcos II is a highly durable white magnetic cue Ball for coin-operated pool tables that work with a magnet system to separate the cue ball from the other balls. This cue ball has a true center of gravity meaning an extra long life, more accuracy, durability, consistency and higher percentage of phenolic resin.