I have to admit that I punched the purchase button too fast. I was restoring a chest of drawers and had to replace the wood slide on one of the drawers. I purchased this slide and when it arrived I realized that the one I needed was wood and the one I got was metal. Also I needed one center mount slide and I got one that goes on the edges of the bottom. I was too embarrassed to return it and now I'm eating crow and listing it here. I paid $22 for the slide originally so I'm just trying to lessen the cost of my stupidity. It is still in the original sealed packaging and installation instructions are visible inside the package. Upon further review there are two slides in the package and the label says they are heavy duty, 75 pound rating, self closing, and 3/4 opening. They are definitely a good set up for a damaged/missing drawer slide and require a half inch clearance under the drawer to fit the mechanism in place.