[Artistic Hourglass]This hourglass glass is with special foaming liquid to form clean and beautiful bubbles.a nice decor for your homes [Design Hourglass]This is a bubble hourglass to enjoy The shape is beautiful and novel,and the number and shape of bubbles will be different every time you go [Ornament decoration]This singing hourglass can be used as a home decoration and is often used in the kitchen.Perfect for home,office,school,restaurant,etc [Glass Hourglass]Because the different size of the bubbles affects the rate of the liquid,the bubble timing is more blurry than the traditional hourglass timing.sand timers can help you develop a strong sense of time and do more efficiently [Perfect Gifts]:The Bubble Singing Hourglass is a perfect gift suitable for any age and occasion