Description: Material: The golf balls are made of EVA foam material, suitable for children to play and indoor golf practice. The EVA foam ball has good elasticity and durability, and it is not easy to deform after long term use.Moderate Hardness: The foam ball is designed to be soft with appropriate hardness, preventing damage to people and objects, ensuring security.Multifunctional Use: Not only can it be used for golf practice, but also as a playground toy ball, suitable for various occasions.Portable Size: With a diameter of 4.2 cm/1.65 inch, golf training balls are convenient to carry around for practice at home or outdoors anytime.Lightweight Design: Light in weight, both children and adults can easily use it. It adds fun to the game. Package includes 10 golf practice balls. Specification: Material: EVA Size Chart: Diameter 4.2cm/1.65inch Package Includes: 10 Golf Practice Ball Note: Please allow slightly errors due to manual measurement and different monitors.