Glow In the Dark Popper! This fun and engaging fidget just got even better! In addition to helping to develop mine motor skills, improving focus, and reducing stress/anxiety, it now glows in the dark! Perfect anxiety reducing tool to help with sleep training, reducing screen time and increasing child engagement. Its bubble popping sound is addicting and will make you want to keep playing over and over. Once you complete one side, turn it over and REPEAT!