EyeLine Golf Classic Putting Mirror, Large 9.25" x 17.5" - Patented Check your alignment, eye position and shoulder alignment. We have made custom units for the Tour players, and now it is available for everyone The eyeline mirror is the base of our original putting System and is the perfect tool for checking all parts of your putting alignment and setup Warning: do not leave mirror in extreme sunlight or heat, as with any Acrylic it could cause warping or melting