Features: Luminous golf ball ensure that you can enjoy playing golf at night, it has a bright fluorescent glow. No batteries needed, it recharge easily with a UV flashlight or any flashlight. The glow golf balls are made of a full compression core and a soft surface, easy to play and can be used for a long time. The kernel is made of elastic rubber, high quality and durable. Great birthday gift for your family or friend who likes playing golf. Specification: Material: Rubber + Fluorescent powder Weight: Approx.310g/ 10.9oz Diameter: Approx.42.67mm/ 1.68in Package List: 6 * Golf Ball Note: 1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Please note that the new type and old type of this product will be sent randomly and make sure you will not mind before ordering. Package List 1Luminous golf ball ensure that you can enjoy playing golf at night, it has a bright fluorescent glow. 2No batteries needed, it recharge easily with a UV flashlight or any flashlight. 3The glow golf balls are made of a full compression core and a soft surface, easy to play and can be used for a long time. 4The kernel is made of elastic rubber, high quality and durable. 5Great birthday gift for your family or friend who likes playing golf.