●Product by McDermott ●Endorsed by Robert Byrne, author of top selling pool instructional books and videos ●Ideal investment for teaching new players the game of cue sport with excellent visual-formulation, helps improving focus and aiming points, takes the confusion out of position play so player can better place the cue ball for next shot ●Specifically designed for players from beginning to advanced levels, a highly accurate technique used by most professional players and master instructors around the world ●Package : Include a 12-pages easy to use instructional booklet