The KONG Bunji High-Viz Ball is specially designed with bright, high visibility colors for various environments, weather, and terrain. Ideal for fetch-and-retrieve play, this durable ball has raised ridges that create an unpredictable bounce, and an ergonomic bungee cord rope that effortlessly launches long distance, saving your shoulder from burnout! Glow-in-the-dark ball and handle make this toy perfect for playing after the sun goes down and on gloomy daysand it even floats in water! Charge the ball and handle under a lamp or in the sun for 15-20 minutes to activate glow-in-the-dark feature.