Definitely will do the job. Great quality and great price.   Instructions said to put sand in the small piece that you screw on the bottom but I didn't have sand. So I just filled it with water and then installed it in the bottom of the chair. I then took the chairs and put them completely underwater to fill them as much as possible with the water. They do move a little bit When we are cleaning the pool. but pretty much stay stationary.  If you don't fill it with water they will float on the water. Not sure how steady it would be if you actually got in it though floating on it.