Health and medical care A man with a dull hand loses. Secrets of the Amazing International Patent (Japan, US, UK, Germany, France, Italy) "Hand and Brain Training Method"
※Please note that product information is not in full comprehensive meaning because of the machine translation.
Japanese title: 単行本(実用) 医学 手先の鈍い人は損をする 驚異の国際特許(日・米・英・独・仏・伊)“手・脳訓練法”の秘密