Made of acrylic material, the confetti in the liquid flashes with the of the liquid, creating a romantic, beautiful and dynamic picture for Gravity will guide the colored droplets travel down at slow pace. It can help improve children's visual skills This hourglass is very suitable for games, tooth brushing time and children's learning time. It can improve children's time management skills and help them do things more effectively Simply flip it over and it will start again and again! Quiet and fun, relieve your stress and provide you with hours of calming entertainment Highly imitating the sense of weightlessness in space, the astronaut floats freely on the water , as if soaring in the sky, taking you into the mysterious space