These night golf balls make any trip to the driving range or course more fun because they look, feel, and perform like regular golf balls. Easy & Fun: These night golf balls are easily charged by sunlight and make any trip to the driving range or course more fun because they just keep glowing in the dark. Better than LED balls: *These balls are the standard size and weight, providing a more authentic golfing experience. Night golf balls look, feel, and perform like regular golf balls. *Specifications: ·Diameter: Approx. 4.27 +/- 0.3mm ·Weight: Approx. 45g ·Activates under sunlight ·Material: 80-85% compression core of synthetic rubber and urethane skin with an outer thickness of 1.8-2mm, to mimic feel and drive power of daytime golf balls. *The United States Golf Association specifies that a golf ball must weigh no more than 1.620 ounces (45.93g), be spherical in shape and be no less than 1.68-inches(42.7mm) in diameter. This is called "The American Ball".
? NIGHT GOLF BALLS, EASY TO PLAY AT NIGHT - Night Golf Balls are fluorescent, which means they are reusable and rechargeable by SUNLIGHT, no need for a UV flashlight that only charges for 10 minutes! These balls naturally absorb the energy of the sun and glow in the dark. Simply leave them outside for a few hours during daylight and they'll do the rest!
? VERY DURABLE - Utilizes an 80-85% compression core of synthetic rubber. Standard Ball: Diameter is approx. 42.7mm and weighs 45g., with 392 dimples. Color of shell: Yellow/White during daylight and Green at night; 12 count ensures plenty of practice swings at the range or you can share with friends for a night round of 18 holes.
? SATISFACTION GUARANTEED - Since this an Amazon Prime product, if you aren't satisfied with the night golf balls, simply return them per the Amazon return policy.