Upgrade your putting sessions with this Putting Arc Mirror from Golf Training Aids and get three devices for the price of one ...

“You can’t practice alignment on the driving range because the driving range is a square box,” Malizia told me. “Out on the golf course you have shapes, you have tees aimed one ...

You need a golfer and a golf ball. Along with two alignment sticks. And Cameron McCormick's formula. And with those, he says, you can figure out the correct stance width and ball positioning.