I gave this product 4 stars instead of 5 because there were no screws or instructions in the box to attach the drawer slides. Instead there was a tear in the package's original plastic sleeve which was not an accident with a delivery issue as the package's postal envelope was in great condition. But whatever, the sliders fit perfectly in the spot I took off. drawer and I used some screws I took from the old drawers. I found a video tutorial on the internet. I thought I would write about screws but for the price I paid for this item it was a bargain even if I had to rustle a few screws. Otherwise the sliders are good quality, work well and I expect them to last a few years.