The Shikoku is one of the largest medium sized Nihon Ken, with weight ranging from 35-55lbs and height (per the breed standard) for males is 52 cm, females 49 cm, with a tolerance of 3 cm taller or shorter allowed. Shibas usually weigh 17-23 lbs, with height for males ideally being 39.5 cm, and for females 36.5 cm.