Wide framed sliding glass door with commercial grade ball bearing bottom rollers. Premium aluminum system with black finish. Safety backed glass. Quick and easy installation. Adjustable for out-of-square openings. Ball bearing bottom rollers offer smooth and quiet operation. Elegant urban design. Low rise bottom track for minimal floor obstruction. Package includes all hardware and fasteners. RELIABILT 9800 Boston 48-in x 80-in Black Prefinished Aluminum Closet Sliding Door (Hardware Included) | 8004068BKP2PWT