Purchased to drive a 5' x 10' cargo trailer into a driveway rather than using brick or wood for the tires. Since my trailer is very light, most of the time I just take the drawbar and stick it in the wheel dock, but once I've filled the trailer, which isn't that easy, I can get it rolling out with some effort. Work as it has sloping sides. Overall a heavy build and as simple as it is it keeps the wheel from sinking into my paved driveway and keeps the trailer from moving at all. Even in recent winds of 40-60mph (and like I said the trailer is light) it hasn't budged an inch. I am very happy with this item and I know it will last for years.