This is the first glow in the dark golf ball with a high performance core. it can replicate the energy transfer and distance of a daytime ball, so it performs just like a real golf ball. They are premium golf balls that hit one to one with your favorite daytime golf ball. Light it up with our long-lasting glow golf balls . you'll never lose golf balls at twilight or during a round of night golf again. Requires UV light source not included in this product With our light up golf balls you won't feel like you're hitting rocks. Full compression core maximizes initial velocity, giving them the right compression that's soft on drives and won't break your driver like an LED ball. Our glow in dark golf balls charge fully in just 30 seconds! Charge the glow pigment skin of these glow gear golf balls using a UV flashlight or Glow Charger canister not included . Or turn on the UV flashlight, hold it over the balls, and voila! They'll be shining ultra-bright in no time. Get easy-to-play with better visibility glow in the dark balls. Unlike LED night balls, our glow in the dark golf balls have a regular, daytime ball core without added battery or glow stick in the core. Colour:Fluorescent Green Material:Sarin Material+Rubber Package Contents: 2x Glow Golf Ball Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.