I bought this despite the four wheels. Why do I need 4 wheels? Two wheels have always seemed to do the trick for me. Also, why don’t they make these where the wheels push in and out with “a click”. I’m not sure that this would add to production cost, but it seems like it would be cool (the bar for “cool” is low for me) and it would save room in the overhead.
Good proposal. Ever consider forwarding your idea to the manufacturer for their consideration? Better still, redesign the wheels so that they are retractable and still remain just as strong and durable, and patent it. Just like whack-a-mole, the wheel that sticks out gets whacked and damaged.
Just imagine $0.10 royalty per wheel that utilizes your patent. Maybe, 4 wheels are better than 2 then.