I invested in a walk stool several months ago. I've found it's worth every penny. It's extremely well made. It folds down small so it's easy to pack around for plein air work. It's lightweight yet very durable. Comes in a reusable pouch with draw strings that can be used like a backpack for carrying it. I bought the 22" stool which allows me to have my lap to work on and it's a natural sitting position so I find it quite comfortable.