A medium duty sliding door hardware series for by-passing installations. Applications include doors between rooms, closet doors, cabinets, storage walls, and partitions. For w" and 1 a" doors weighing up to 50 lbs/door (23 kg/door) Ball-bearing wheels guarantee a smooth, quiet and long lasting performance Dual set of mounting holes; ideal for hollow core doors Easy-turn cam vertical adjustment Dust free track design Quick door hanging by tilting pre-mounted hardware onto track profile