Specifications:Colored balls are very suitable for high visibility in low light conditions, which are easier to be found.The outer shell is made of titanium-containing sarin material, which has better resistance to hitting.Middle layer is a single-layer soft design, and the center of the ball is high-elastic rubber with better elasticity.Item Name: Golf BallMaterial: Synthetic Rubber, Synthetic ResinElasticity: 75%Hardness: 75Features: Durable, Golf Tool, Easy to UseSize: 4.2cm/1.65" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:10 x Golf Balls