I have no idea how they get such good reviews. I install high end cabinetry for living and most of the soft close slides that go into new cabinetry roll in and out very easily. I bought these to upgrade a cheaper closet for a client, they slide in and out like they were smeared with honey. Definitely not ball bearings, although they do have ball bearings. The soft-close only works if you force the drawer closed, which should have kept the original sliders but have already thrown away. I don't know which brand to recommend but will update this if I find them!