Guanbo 81×51 vertical frameless glass railing system with a 51mm × 81mm aluminum base channel, 6+6 laminated tempered glass, and a standard 4m length per piece. A slotted top rail is included. Includes 3 screws, rubber seal, gasket, and fixing plate. Colors can be customized. Suitable for balconies, platforms, stairs, and decks in residential, hotel, and commercial buildings. Before purchase, confirm the mounting substrate, glass height, connections, edge clearances, and structural loads.