The cube is 1.5" x 1.5" in size and is designed to hold a medium sized air plant. It is backed with strong magnets, so it won't slide on the magnetic surface. It can also be displayed on a desk or shelf, making this a very versatile design. The color blocking is hand painted. Air plants enjoy being soaked in water 1x per week for 20 minutes. They also prefer bright, indirect sunlight.