1,Made of high quality synthetic and rubber,durable to use. 2,​​​​​​​Built-in LED light will brightly flash on Impact.When the ball is hit hard on the floor, the LED lights will glow at the same time. 3,The lighting time is around 5-8 minutes per time,enough time to pick them up. After 5-8 minutes,the light will be extinguished, hit again, and light up again. 4,When the battery(can not be replaced) runs out,the ball only use as a regular golf ball,it will not glowing anymore. 5,Good for day and night golfing. Ideal for golf playing enthusiast. Features: Made of high quality synthetic and rubber,durable to use. Built-in LED light will brightly flash on Impact.When the ball is hit hard on the floor, the LED lights will glow at the same time. The lighting time is around 5-8 minutes per time,enough time to pick them up. After 5-8 minutes,the light will be extinguished, hit again, and light up again. When the battery(can not be replaced) runs out,the ball only use as a regular golf ball,it will not glowing anymore. Good for day and night golfing. Specification: Color: White or Pink or Blue or Yellow or White or Green or Multi-color (optional) Material: Synthetic and Rubber Battery: 1x button cell (can not be replaced) Glowing time: approx 5-8 minutes for once , max.50hrs in total Elasticity: above 65 percent Hardness: above 80 percent Diameter: 42.67 mm or 1.7 in Unit weight: approx. 45.9 g or 1.6 oz Package List: 6x Ball 6x Ball Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store