Brand Name: Klassic BiPolar Head Model/Catalog Number: 3205.41.022 Klassic BiPolar Head, 41 mm OD, 22 mm Head; 3205.42.022 Klassic BiPolar Head, 42 mm OD, 22 mm Head; 3205.43.022 Klassic BiPolar Head, 43 mm OD, 22 mm Head; 3205.44.028 Klassic BiPolar Head, 44 mm OD, 28 mm Head; 3205.45.028 Klassic BiPolar Head, 45 mm OD, 28 mm Head; 3205.46.028 Klassic BiPolar Head, 46 mm OD, 28 mm Head; 3205.47.028 Klassic BiPolar Head, 47 mm OD, 28 mm Head; 3205.48.028 Klassic BiPolar Head, 48 mm OD, 28 mm Head; 3205.49.028 Klassic BiPolar Head, 49 mm OD, 28 mm Head; 3205.50.028 Klassic BiPolar Head, 50 mm OD, 28 mm Head; 3205.51.028 Klassic BiPolar Head, 51 mm OD, 28 mm Head; 3205.52.028 Klassic BiPolar Head, 52 mm OD, 28 mm Head; 3205.53.028 Klassic BiPolar Head, 53 mm OD, 28 mm Head; 3205.54.028 Klassic BiPolar Head, 54 mm OD, 28 mm Head; 3205.55.028 Klassic BiPolar Head, 55 mm OD, 28 mm Head; 3205.56.028 Klassic BiPolar Head, 56 mm OD, 28 mm Head; 3205.58.028 Klassic BiPolar Head, 58 mm OD, 28 mm Head; 3205.60.028 Klassic BiPolar Head, 60 mm OD, 28 mm Head