6 Tier Vertical Planter - 6 tier stacking planter, made of BPA-free material, can hold up to 24 different plants, such as strawberries, spinach, leaf lettuce, arugula, and mustard greens, and a few smaller herbs and flowers. Plus, it's the perfect vessel for strawberries as the berries cascade over the container lip. Indoor & Outdoor - There is a large rolling garden saucer on the bottom so that easy to move around indoors and outdoors, and it's a breeze to spin it to allow each of the herbs to take advantage of the sun. Easy Assembly - Putting the dirt in is easy and there isn't any assembly required just stake them on top of each other. Happy planting in the kitchen, balcony, and garden. Support Hole and Support Pipe - Tower garden had a spot in the center for a support pole(Included), that's useful in a windy location, or used for hanging with an iron chain as garden decor. Flow Design - The water filtration system from top to bottom can save water and retain moisture but prevents overwatering or root rot. 6 filters are placed on each level to keep the soil from going through the big drainage holes, it also helps retain water in each planter level. Indoor & Outdoor - There is a large rolling garden saucer on the bottom so that easy to move around indoors and outdoors, and it's a breeze to spin it to allow each of the herbs to take advantage of the sun.