Mobile Metal Raised Garden Bed Cart with Legs, Elevated Tall Planter Box with Wheels for Outdoor 71541257Using drainage system to create an anti soaking layer in the planting groove, excess water will flow to the anti soaking layer, creating space for root to absorb oxygen & preventing waterlogged soil and root rot from overwatering or heavy rainfall. Switchable drainage hole, you can drain water at any time. It can be used indoors and outdoors, garden, backyard, balconies, courtyards, patio, porch and other places, and can grow peppers tomatoes,