This is a cork bark tube. I bought a small plastic storage box for a buck and can get 4 bottoms from that. I nailed and glued it to the bottom edge. I filled it with lava rock. Drilled holes in the bottom and sides. The eye hooks on the top edge will be used to hang the pot and also for my rhizome clip. Clip is heavy wire bent at 90. I spring without bending the wire in place. The eye hook on the clip looks like it might be loose. I'll be watching it. But overall I like it so far.