If i could give these 10 stars I would.  They are relatively easy to slide on the shelf. I found they are easier to install if you slide them on at an angle and then straighten the divider. Very inexpensively I solved the problem of my sweaters toppling over.  Also, because of the height, I was now able to stack my sweaters higher, resulting in additional closet space.  Ended up buy additional dividers to organize both my linen closet and hall closet.