Whether you're looking for a kit or supplies. All of our needle felting products are of the highest quality. Wool Information: Extra fine merino (about 19 microns) wool tops (combed sliver). Tops weight: about 23g/m. Tops length: about 4 metres per 100g. Our extra fine merino wool tops come from both Australia and South America and are carefully selected to ensure constant quality over time. All lots are MULESING FREE The dyeing complies with Oeko-Tex Standard 100 and is done in Italy at DHG dyeinghouse which is GOTS 5.0 and GRS certified. Our extra fine merino wool tops are perfect for both needle and wet felting, spinning and hand weaving.