Our stair balusters are crafted from high-hardness carbon steel material, featuring excellent corrosion-proof properties for indoor usage. The sturdy structure and rustproof coating provide stability and durability. The installation is easy with firm connection, offering an elegant fencing system. | Vevor | | Staircase Balusters 31 Pack, 44 Inch Durable Carbon Steel Stair Balusters, 0.5 Inch Indoor Square Metal Spindle Railing | Black | Best Buy