Aramith Nic Barrow's Ultimate Training Ball

The object ball side: to improve your aiming, sighting and potting using a brand new pair of aim lines.

The cue ball side: master your cue action and positional play with a simple grid system for where to strike the cue ball.

The cue ball calculator: an innovative new tool to help you calculate where and how to place the cue ball for the next shot. You place it on the table to give you a visual guide to where you want the cue ball to land.

Also comes with a 16 page instruction booklet with full diagrams and explanations.