3rd eye stroke trainer
The Third Eye Stroke Trainer helps you correct two of the most common pool playing flaws.
Flaws such as improper alignment and the last second steering of the stroke.
The arms of the attachment help a player to see and approach the true center of the cue ball, something most players can't or don't do.
The arms also help you groove and straighten your stroke.
It's easy to use and very effective

Comes complete with tools and a instructional DVD