Steel Stair Riser 6 Step. Steel Stair Riser 2 Step. Steel Stair Riser 3 Step. Steel Stair Riser 4 Step. Steel Stair Riser 5 Step. Steel Stair Riser 7 Step. 【Multi Scenario Application】- This Stair Stringer provides convenient passages for various occasions and can be installed on wooden walls, brick walls, concrete walls, and even iron, adapting to the installation needs of different scenarios.