Description: 【High Quality Material】: This golf putting ball is made of synthetic rubber, ensuring durability and longevity. It is designed to withstand both indoor and outdoor use. Size: 4.2cmx4.2cmx2.7cm/1.65inchx1.65inchx1.06inch. 【Unique Flat Tire Design】: The flat ball provides a unique and challenging golf experience. It helps to improve your putting skills by making the game more challenging. 【Prevents Left and Right Curves】: The design of this golf ball helps to prevent left and right curves, allowing for a straighter and more accurate . This makes it an excellent tool for practicing your putting skills. 【Indoor and Outdoor Use】: This golf putting ball is suitable for both indoor and outdoor use. Whether you're practicing at home or on the golf course, this ball is designed to perform. 【Perfect for Practice】: This golf putting ball is an excellent tool for those looking to improve their golf skills. It provides a challenge that can help to improve your accuracy and precision. Specification: Material: Synthetic Rubber Size Chart: 4.2cmx4.2cmx2.7cm/1.65inchx1.65inchx1.06inch Package Includes: 1 Golf Training Ball(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.