It has twenty holes in plant sites for more harvest and planting, Hydroponic boxes are removable or interchangeable, or you can use the tray itself without the boxes if you wish. The whole package comes with net pots, sponge plugs, plant food, a plastic dome, four hydroponic boxes, two rods, 48 watts LED light, and a tray on the bottom. Just pick the perfect seeds you like for plants, and you are ready for a bountiful supply of salads or beautiful blooms of flowers. The item "Hydroponic Growing system 20 plant sites, removable boxes and adjustable height" is in sale since Friday, June 25, 2021.This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Hydroponics\Hydroponic Systems, Parts & Accessories\Hydroponic Systems". The seller is "loidaflowers" and is located in Ponte Vedra Beach, Florida. This item can be shipped worldwide.