Ball Sets -6 Pieces Luminous Golf Balls Glow In The Night Golf Balls Highlights generic brand 6 Pieces Luminous Golf Balls Glow In The Night Golf Balls Description: Made of qualified materials, durable and reliable. Automatically absorb UV flashlight or any sunlight, no need charging. Thanks to its fluorescent glow, you can enjoy your round of golf at night. Softer than those LED night balls, won't cut off when hitting too hard. Great gift for your golfing family or friends. Specification: Material: Outer Layer: Import DuPont Sarin+Phosphor Inner Layer: Synthetic Rubber Color: As the picture shown Size: approx. Diameter: 42.67mm / 1.68inch Package Includes: 6 Pieces Luminous Golf Balls Note: Please allow slight difference due to manual measurement. The color may be slightly different due to different displays. Thank you for understanding.