3 way unique design. The trio planter is a superb product with 3 separate propagators that can be assembled in 3 design configurations to best fit your space. It is small and compact to fit many gardens and patios. The main features of the product 3 deep planting trays for young plants and seedlings, removable clear lids that include a unique ventilation option. The frame is constructed from galvanized steel. The product is compact, lightweight and is easily assembled with step by step instructions.