Something about exposed mechanisms like this always catch our eye. Barn Door Hardware is an online shop packed full of hardware for surface-mounted sliding doors. Whether your style is sleek with frameless glass or rustic with z-board doors, there is hardware here for you.
Maybe it's because so much of our current built environment is "vanilla" gypsum board, wall-to-wall carpet, and plastic. In contrast, the mechanical nature of this exposed hardware stands out as something that works and we think that's its appeal.