The GolfERASERS 12-Pack REFILL is for repeat customers that already own the bag tag tether (included with SKU #5001 6-pack). This is to refill the tether. GolfERASERS easily remove dirt, grass, mud and sand from club faces, golf balls and shoes. Simply slide the cleaners onto your bag tag tether and have them accessible to clean before, during and after the round. As seen on Shark Tank and Good Morning America!