Golf Ball Markers Regardless of ability, Golf Ball Markers are a necessity for every player. Used on the putting green to mark your ball’s position, it allows you to line up your putt, clean your ball before a putt or simply move a ball that could be distracting to another golfer on the green. At GolfOnline we carry a number of design options to capture your individuality on the course. From Callaway to Nike, we have you spoiled for choice. Golf Ball Markers officially licensed through the Premier League mean you can show your allegiance to your favourite team while playing your way through the greens.