Make your mark with our golf ball marker necklace with the I heart golf design. Our ladies' ball marker necklaces are the perfect golf gift for your favorite women golfer! The necklace can be worn as jewelry off the golf course and doubles as a golf ball marker on the golf course. The necklace is magnetic and works with other Birdie Girl golf ball markers. Size: 3/4" Diameter (Pendant) Chain: 16" Rolo Thickness: 2.5MM Lobster Clasp Ball Markers are 1" Diameter