1.Product name: blind stone , tactile tile for blind people 2.Material:Granite 3.Color: Light Grey,Red,yellow 1.Raw materialGrantie ,Basalt,Sandstone,Porphyry 2.Colors Black , Dark grey , Silver grey , Yellow, Red , Pink , Green 3.SurfaceFlame on top , rest sides sawn cut 4.Sizes300x300x50mm 400x600x50mm 600x600x50mm 300x300x60mm 400x600x60mm 600x600x60mm or other sizes according to customer's ...