... , white, black, yellow, green, red, brown and etc.; 2.Standard Size: Step,100-150x33cm, Riser,100-150x17cm, other sizes are available ... , flamed, sandblasted, bush-hammered, anti-slip strip, bronze bar etc.; 5. Packing: Fumigated wooden crates; 6. Quality control: Polished degree: More ... , monument, etc Natural stone stair treads with low price and A grade