They combine efficiency in terms of both crop growth and plant handling. A sterile growing medium made from spun molten rock or made of natural raw materials, a great medium for rooting cuttings. They are conditioned by soaking in water. 3 inch(75cmby 65cm) ,4 inch(100by 65cm) and the big one Hugo 5.5 inches (140cm by 140cm) ohh yes and the slab.
3 inch big Hole, 4 inch big Hole, 5.5 inch, 1 metre slab, 3 inch small Hole, 4 inch small Hole