Sorry for the confusion. What Faldo said. shakuhachi means “(1) shaku 8 (sun)”. A shaku is roughly 1/3 of a meter, and it is divided into 10 sun. A standard shakuhachi is 1.8 shaku, but there are other longer ones.
a Japanese word meaning “measure” or “scale”, also used for several traditional units in Japan:  As a unit of distance, the shaku is the Japanese foot, equal to about 30.30 centimeters or 11.93 inches;  As a unit of area, the shaku equals 330.6 square centimeters (51.24 square inches);  As a unit of volume, the shaku equals about 18.04 milliliters (0.61 U.S. fluid ounce).