Nitram Sharpening Block Replacement pads designed specifically for the Nitram Sharpening Bloc. The Nitram Sharpening Bloc is ideal for shaping and sharpening charcoal and other drawing media. Simply hold the handle and drag your media over the sanded pad. This tool measures approximately 23 cm x 8 cm wide at its widest point.

• 5x replacement sharpening surfaces.
  
• Sharpeneing block sold seperatly