This is the one I got on Amazon a Sunlite Double Kickstand but it is not available there for a while by the seller. Maybe back but when?
It allows me on my bike the way it is weighted without me on it, the front wheel is slightly off the ground when on flat even ground.
I put a weight over the front wheel to teeter it to have the rear wheel off the ground.
Sometimes use a thin piece of wood under the feet to do maintenance to elevate the rear wheel a little extra.
Should the one I have brake I would like to know where that heavy duty type you got was purchased.
Also the looks of the feet bottom on that show a metal square footing which I like. The rubber feet on the round metal are really good for a showroom floor, who needs it. More surface area is better as long as it is out of the way when folded up.