8x20 cm (3.15x7.87 in); portable and light for easy carrying and placement on any desk or shelf. What this is A bubble hourglass made of glass and filled with a special foaming liquid that forms clean, beautiful bubbles as it flows. The shape is beautiful and novel, and the number and shape of bubbles differ with every use. Key benefits Improve time perception and focus: watching the bubbles flow can help you develop a sense of time and work more efficiently. Unique visual decor: a stylish and unobtrusive accent that enhances home or office spaces. No two uses are the same: each flip produces a different bubble pattern, adding visual interest and novelty. Important attributes Function: bubble hourglass that visually marks passing time through bubble flow rather than a precise tick count. Material: glass with a special foaming liquid for bubbles. Size: 8x20 cm (3.15x7.87 in); compact and portable, suitable for desks, tables, and shelves. Performance: bubble flow rate varies with bubble size, making timing blurrier than traditional hourglasses; designed for visual time awareness rather than precise timing. Use scenarios Focus work or study sessions: place on your desk, flip to start, and use the evolving bubbles as a gentle time cue. Kitchen or cooking timer: observe the bubbles as you wait for tea, eggs, or sauces, adding a visual element to timing. Living room or office decor: display as a stylish centerpiece or conversation piece that also provides a relaxing visual timer. How to use Invert the hourglass to start the flow of bubbles; watch the bubbles rise and fall until the content settles. Each flip yields a bubble pattern and timing feel.