slate oilstones four in total . The small one in a box is 115 x 32 x 14 mm , weighs 160 g 
                                           the other small one , measures 115 x 32 x 18 mm  weighs 190g 
                                            the long thin one (very oily ) 198 x 43 x 11 mm and weighs 283 g 
                                              the bigger one, an unusual size , 201 x 44 x 24 mm weighs 569 g . All are sound stones. Please see my other items and ask any questions . International by GSP only . If buying more than one item ,please dont pay until all sales are finished