Feature: 1. Double-layer game ball, inner synthetic rubber, outer shell sarin material, good elasticity, smoother appearance, strong resistance to hitting, more stable shot and longer distance. 2. Special 332 wind tunnel design, the average depth of each hole is about 0.025 cm, reduce the air resistance, increase fly stability and fly distance. 3. Golf zeal stands for the ball marking line, which is suitable for various golf courses, cultivates sense of direction during practice, and adjusts the direction of putting. Let players master putter technology faster and play better in the game. 4. Each ball has a different corresponding poker number that is easy to distinguish. 5. Wonderful accessory for golf training. Specification: Condition: brand new Item type: Poker Golf Balls Material: Synthetic rubber ball core + outer layer covered with sarin material Color: As picture shown Diameter: Approx. 1.68in/42.67mm Weight: Approx. 255g Elasticity: about 85-90% Number of wind tunnels: 332 Package List: 5 x Poker Golf Balls