This was the ideal solution for making a pull-out shelf for my tiny teardrop camper where space is at a premium. The mechanism is well made, strong and the operation very smooth with the ball bearings. It was very easy to attach with nano tape and screws. I particularly like that it has a sort of locking mechanism that keeps it from sliding out when it is in the closed position. I believe it’s made for using on the sides of drawers but it worked great in this position. I liked it so much after making the first shelf that I ordered another and made one on the other side too! Great product!