I ordered the 10" Garden Kneeler, expecting something pretty flimsy for the price.
Most of the mechanical work that I do is at waist level or below so I'm always squatting, sitting or kneeling. I sit on 5-gallon buckets outside, and they fall over in the gravel. In my garage, a rolling stool works well for sitting, but not kneeling.
Outdoors, when I work on equipment in the field, I need something different.
I figured I would buy this kneeler and if I didn't like it, I would copy their design and make a better one. Surprisingly, I don't have to do that. This kneeler is light, sturdy and well-made. I really like it. I gave it 5 stars.