Nice functions when it works! When walking on hardwood floor, they make a distinct sound which is not of a compliant sole material. At least my baby did. They even came with a free pair or those tiny socks that don’t show. The only thing is if you move around in your sleep it may fall off but other than that it’s amazing. The top horizontal bar must rest *on top of the molding*; otherwise, it wont stay up when youre pulling up on it (while a lot of your weight will be redirected into the door frame, theres still a downward vector which the molding above the door absorbs). so I purchased this kit with little thought. My only issue was the top strap rubbed across the top of my foot, giving me a blister. I even remember reading the one on Amazon where a customer praised them as a good protection when sitting on a tractor. then i found hte 2nd and 3rd sparks in the picture, has no iridium left !