A 1.8 shakuhachi produces D4 (D above Middle C, 293.66 Hz) as its fundamental—the lowest note it produces with all five finger holes covered, and a normal blowing angle. In contrast, a 2.4 shakuhachi has a fundamental of A3 (A below Middle C, 220 Hz). As the length increases, the spacing of the finger holes also increases, stretching both fingers and technique. Longer flutes often have offset finger holes, and very long flutes are almost always custom made to suit individual players. Some honkyoku, in particular those of the Nezasaha (Kimpu-ryū) school are intended to be played on these longer flutes.