Billiard Balls: The rate at which billiard balls wear down is also surprising, as within one year of play, the balls will have worn down to a size that would no longer meet the minimum in most sets of equipment specifications.

The cue ball is subject to the most billiard ball wear and tear for obvious reasons. It is struck with the cue tip, and shot across the billiard table cloth on every single shot. It is also the most common ball to be launched off of the billiard table. Billiard ball wear and tear is also present in object balls.

These billiard balls wear down from any friction produced during the shot. Billiard balls wear down much more quickly when the cloth is allowed to become dirty. The reason for this is generally the amount of cue chalk dust that is on the cloth. Since billiard chalk is made up of fine sand, a dirty cloth tends to act like sandpaper.

As your billiard balls wear down, the cue ball will generally become even smaller than your object balls. The effect of this wear is that your draw shots will become easier, and follow shots will become more difficult. Parts of your object ball's design will wear down faster than others, and thus, on some balls you'll be able to tell the numbers by feel as they wear down faster or slower than the rest of the balls. Most experienced billiard players claim that the "eyes" of old billiard balls will wear down and will be found to bulge out.