... polished granite panel, but there are three types of outdoor stairs: flag stone steps, solid stone steps, and border stone steps ... : gray, pink, red, black, white, yellow, brown, 3. Dimension: Interior stairs: 1050x280x180mm, 1200x330x180mm, ect 4. Pop granite material: G682, G603,G664 ... time: 15-30 days, based on quantity!To keep granite stairs clean and shiny, using a damp cloth, soft broom, or ...