... granite steps,stairs 1.material: marble,granite.slate 2. color: black, brown,green.white,yellow 3.surface: polish,honed 687 granite steps,stairs ... we can supply various of nature stone stairs design,welcome to contact ... travertine, limestone, etc.)Stair typeStraight stairs ,spiral stairs ,arc stairs Popular stone for steps granite:G603,G636,G664,G687,G654, ...