Product Overview: WHAT IS THE ONE TRAINING AID THAT EVERY PROFESSIONAL GOLFER CARRIES WITH THEM?!?!? THE ANSWER IS A PUTTING MIRROR! A FEW SHORT MINUTES WITH THIS MIRROR ON THE PRACTICE GREEN WILL ENSURE A STRAIGHT-BACK, STRAIGHT-THROUGH PENDULUM STROKE CHECKING ON YOUR EYE POSITION OVER THE BALL SIMULTANEOUSLY. Features: LIKE ALL PUTTING MIRRORS, THE PERFECT PRACTICE SMALL PUTTING MIRROR IS A REFLECTIVE, UNBREAKABLE MIRROR THAT SHOWS YOU WHERE YOUR EYES ARE RELATIVE TO BOTH THE GOLF BALL AND THE PUTTER FACE. THE PUTTING MIRROR HAS A SLOT FOR THE GOLF BALL AS WELL AS LINES TO INDICATE SQUARE RELATIVE TO THE PUTTER FACE WORKS GREAT WITH THE PERFECT PRACTICE PUTTING MAT! Comes with a convenient travel case.