We offer different sizes.It is recommended that you confirm the placement and space size before purchasing, and then choose. Perfect Quality,Highxquality Leadxfree Glass That is Transparent Like Water, Allowing You to Fully Experience the Gurgling Quicksand. the Product Design is Ingenious, the Workmanship is Precise, Each Detail Level is Distinct, and the Perfect Fine Sand and Its Color Make Every 3D Picture That Flows Out is Full of Artistic Conception. the Frame of Solid Wood Material Does Not Need to Worry About Its Environmental Protection Problem, and It is an Excellentaniture Decoration. 360° parallel rotation, Moving sand pictures create a new sand picture with each turn.The sand never makes the same design twice. Watching the colored sand slowly tumble down the circle is relaxing and calming to the mind, which can relieve stress, relax your eyes,cultivate patience. give you unexpected surprise The beauty of time, space and nature Unconsciously, it takes you into the sand world of Zen and makes a short separation from the noisy world. Dialectic ally, beauty is not an existence, but a disappearance Each flip can produce a completely non-repetitive dynamic painting,so that you can not bear to release it.It's benefit for the development of intelligence, improve the sentiment. Particularly suitable for office workers, students and computer workers, can relieve stress and eye fatigue. It can also be passed on to the closest people, family, friends, co-workers, etc. It is also suitable for parties, birthdays, celebrations, weddings, housewarmings, travel reminders and gifts.