Quality product. The bearings create a smooth rocking motion and the soft close mechanism works well. I replace old drawers all over the house and figured why not replace them with sleek ones. It was a great choice for the price, and at 22" they even fit in deep drawers under kitchen counters, and they're strong enough: I used a kit to make a kitchen trash drawer and it works just as smoothly when the trash can is full (20-25 pounds) when empty. Sure, I had an inch of side clearance and then I bolted everything to the sides of the box. Then I separated the parts and installed the bracket on the inside of the cabinet. This method worked well for me even though I didn't have perfect alignment. Drawers slide out. There are extra holes on the slides so you can add more if needed.