These 100mm diameter stitched sisal mops have leather centre washers and 12mm bore for mounting onto the Ultimate Edge βtwist n fixβ arbor. These mops consist of layered cotton material left unstitched for a softer working surface. Use these mops with the finest compounds for final polishing and high glossing on steel and stainless steel. They are mop of choice for first stage and final finishing of non-ferrous metals such as brass and copper. For best results use a separate mop for each different compound, mark each mop using a felt tip pen with the type of compound used.-bg