Yfos Glow In The Dark Pickleball Balls - Glowup 40-Hole Usapa Standard Pickleball Set Of 6 BallsTournament grade glow-in-the-Dark Pickleball Ball *Must charge balls under a bright light for maximum glow*Features of Yfos Glow In The Dark Pickleball Balls - Glowup 40-Hole Usapa Standard Pickleball Set Of 6 Balls *Must charge balls under a bright ligh..