The glow-in-the-dark dog collar charm will keep your pet safe all night long. Light weight and always on this will glow even in daylight. Anywhere you need a little light in the night • Use for pet collars, keys, backpacks, gear and more. • Recharges naturally in daylight and glows all night. • Earth Friendly – No batteries required. • Each unique charm is handmade in Arizona. Illuminate your furry friend's nighttime activities with the Glow your Pup Up Dog Charm. This light-weight, always-on charm is the perfect addition to any collar, leash, or gear. It recharges naturally in daylight and glows all night, making it a convenient, earth-friendly option with no batteries required. Each unique charm is handcrafted in Arizona, making it a truly special accessory for your beloved pet.