The North Mountain or Kitayama Super Polish Stone is named after the famous mountain near the city of Kyoto, where historically, some of the most desirable natural sharpening stones were mined. The Kitayama Stone is manufactured from the finest quality, closely graded #8000 grit abrasives with best quality alumina. According to the maker his Kitayama stone performs like the #12000 grit stones that have recently come onto the market. This stone will give a brighter polish than any other similar stones. The Kitayama Stone comes on a wooden base in an attractive box. A Nagura stone is included. The stone size is 8-1/8˝ x 3˝ x 1˝.