Review on VALISY Triple Section Extension Ball Bearing: The Optimal Choice for Industrial Hardware by Larry Blanco

Sturdy construction. The soft close/auto close mechanism works smoothly. Removing the inner drawer's built-in slide is a little tricky, but once you've done it, it's relatively easy. They haven't been used long enough to be durable, but they seem to last a long time. Package includes screws for mounting but no additional brackets for anything other than direct mounting.