Dansko's bar and brush set will help refine the natural nap of your nubuck or suede shoes. Simply use the bar to “erase” dirt and stubborn stains on the upper - and then follow with the brush to comb fibers back into place. When using the two-sided block, rub lightly back and forth to remove surface stains. When using the brush, use the rubber nub side to gently raise the leather nap for a fresh look. Always brush and rub fragile nubuck and suede gently and with care. Heels and tough to reach spots (like the shoe seam) clean best by using the blade or beaded crescent edge. We recommend testing it on a hidden area before treating the entire shoe. Use our block and brush to clean all fine leather products like nubuck, burnished nubuck, milled nubuck, suede, chamois, and calfskin. Not recommended for use on finished leathers."