Horse hair sieves as an completely man-made products , which is almost disappeared in the world . But you can find the craftman to make horse hair sieves in China , and we can provide this kind products to the world ,Unlike upholstery, where the horsehair is used only as weft, both the warp and weft of seive fabric is horsehair. The specification is 20cmx20cm,30cmx30cm,40cmx40cm .