Classification Size 
Keishi  (thumb size) 2.5 cm 1 inch
Shito  (very small)  7.5 cm 3 inch
Mame  (mini)  7-20 cm 6 inch
Shohin  (small) 20 cm 8 inch
Kifu  (medium) +20-30 cm +8-12 inch
Chuhin  (medium large) +30-45 cm +1 foot
Ogata  (large) +45 cm +18 inch