I made my own bags from landscape fabric. They work just like the name brands. For risers, I found some wire baskets at the box store. I turned them upside down and put the bags on top. They were $3 for two. About 8 inches high and about 10x8. The bags don't hang over. I put them into plastic dish pans and I LST by tying stems down to the bag. I am in flower now and my canopy is about 14 inches wide. I can lift the whole thing out to water and examine plants. I just lift the wire baskets, with plant on top, out to empty the dish pans.