Chinese Natual Granite Stair/ Red Granite Step/ Granite Riser Steps and Risers are widely used for building, house. Common size have: Steps 120(L)X34(W)X3CM(T) Risers 120(L)X17(W)X2cm(T) Customized specification are also accepted. Finished: Topside polished or flamed with one long edge Full bullnose or straight polished Risers always finished by four edges sawn Surface: A) 3 channel of anti slip at size 5mmx5mm B) One anti slip of bushhammered, flamed or sandblasted at wildth 3-5cm Tolerance in thickness: +-1mm Popular Granite Stair materials: G664, G687, G603, G654, G640, G562(Maple Red) etc. We guarantee: Best quality, Low price, Fast production, Strong and Safe package.