Odyssey 2 balls included, can be attached to many mallet type putters, tailor-made large putters, etc. Size: Entrance width 5.1 inches (13 cm), depth 4.3 inches (11 cm), thickness 1.0 inches (2.5 cm), magnetic type opening, embroidered, for mallets. Package Contents: 1 x CoverMaterial: High quality PU leather.