Features: -- Made of quality plastics frame and glass screen, durable usage -- Motion of sands can relieve stress, relax your eyes -- Easy to form beautiful patterns, an ancient Chinese folk art with modern technology -- Filled with colored sand, creates changing and unique sand landscapes every time you flip it over -- Suitable office workers, students, long time in the computer next to the work of people -- Nice choice as gift for children, friends, families, coworkers, ideal display right on desk