step stone 1.material:granite,basalt 2.used for paving 3.manufacturer and exporter over 20 years 4.customized size available step stonegranite paving stoneround step stone Natural Step Stone for pavingPopular materialnatural granite(grey,yellow),basalt(black)SizeD45-50cm*H5-7cm,D60*H5cm etcCustomized size availableSurface finishingNatural split,Bush hammered,Flamed,Roughly picked ,SawnUsagewidely ...