The Space Plant Vase is a plant container that has a hollow tube for water to go in. However, the water will not just slide down the tube like on earth. This is why there is an extra piece to push the water down the tube and into the soil. There should be soil in the container or else the water will go out the small opening in the top for the plant to grow out of. The soil will absorb the water before it gets the chance to escape out the top. You can attach velcro to any of the sides (Not bottom or top) except the one that has the tube on it. This model can be used on any space station needed. This can be used any time to grow plants in space.