LONG-LASTING 304 STAINLESS STEEL:The glass railing system are made of excellent quality T304 stainless steel,which possesses strong rust resistance and durability,black baking paint process, modern style,and beautiful appearance. BASIC SPECIFICATION:Material:T304 stainless steel, thickness: 0.047in(1.2mm), Height:35.8in(910mm), Pipe Diameter:2 x 2in(50 x 50mm), Glass Channel Caliber: 0.5 x 0.5in(12.7 x 12.7mm), Applicable glass / wood / plastics thickness: 0.39-0.47in(10-12mm), Distance between post and railing: <47in(1200mm). EASY TO INSTALL:No need to drill holes to install the glass,prepare the right glass and glass glue (for fixing the glass), 1 step: fix the balustrade with expansion bolts in the installation position, 2 step: insert the glass into the groove of the column, and play the glass glue to be glass adhesive can be completed after curing the installation WIDE APPLICATIONS:Glass railing post can be installed both indoors and outdoors, suitable for balcony railing, deck railing, attic railing, porch railing, staircase railing, swimming pool railing, etc, black modern style, home and business are available,ideal for renovations that will give your house a new look NOTES AND SERVICES: 1.Because of weak alkalinity, this railing post is not recommended for projects within 10 miles of the beach or ocean water. 2.The span between two structural columns should not exceed 4 ft (120 cm), especially in complex outdoor environments. If you have any questions, please feel free to contact us.