EyeLine Golf Impact Ball Liner 3-Pack with Marker by Hank Haney - Easy Ball Marking Stencil for Accurate Putter Face & Target Line, USGA Legal, Precision Putting Alignment Tool Used by Tour Players

The best alignment tool I've used. Lines your ball to the path you want to hit and makes sure your putter face is square. Good quality marker pen as well.

On husbands birthday list! Apparently a must for golfers! Much appreciated!

Not bad

Great

Image looks smaller on the ball

This really helps , not only with putting but with setting up to drive too.

Rubbish, value less than £1. Xesign on ball too distracting.

Since I’ve used this product my all round game has improved, both driving and putting accuracy. And now using pick and place on fairways is also helping.

Absolutely love it. Helps square up your putter to the ball.

I've tried just about every alignment aid over the years. This one makes squaring up the putter to the line a breeze, and I have seen significant improvement since marking my golf balls with this marker.

It has really made a difference in my putting game. My aim is truer now. Reading the greens and the speed is the only thing left to conquer now.

Good

Works great, but it's a little pricey for a piece of injection-molded plastic. I absolutely love how this looks when you're standing over a putt because of how square it looks, and some friends of mine have asked where to get one for themselves. The 3-pack is great if you lose stuff that goes in to your pockets like me. The marker it comes with is awful, so I recommend getting an ultra fine tip sharpie if you want to make crisp lines. It does cause some of the line edges to bleed a little bit when you pull the stencil off the ball, which is a common annoyance I have with pretty much all marker stencils.