Crystal Golf Ball Marker Black Diamond The Magic of Crystals on and off the golf course. These beautiful shaped magnetic ballmarkers with Swarovski Crystals are a fashionable very functional and an eye-catching accessory. Ballmarker clips is made from durable steel materials, feature with a silver tone trim finish, and has an extremely powerful magnet to hold your unique Crystal Ballmarker fast. They easily attach to your cap, visor, shoe, belt or golf bag for easy access and make a perfect gift idea and fantastic tournament prize. screen may not exactly match the color