1) 1/2 Radius Edge Staircase, Steps 2) 100-160x16-33x2/3cm 1/2 Radius Edge Staircase, Steps Yasta Stone is a professional fabricator of granite ... eased polished, full bullnose, half bullnose, semicircular, 1/4 radius,1/2 radius.The stone stairs can also have Anti-slip ... eased and polished finished.Edges, Dupont Bullnose,Half Bullnose,1/2 Raidus,1/4 Radius,Demi Bullnose,Quarter circle,Semi Circle.Size ...