When equipping the existing musical instrument with GOTOH products, processing of addition to the musical instrument side may be necessity. If attachment impossible without processing is carried out, there is a possibility of leading to breakage of a musical instrument. Please check size etc. well before purchase. Moreover, We recommend that clearing work is requested from specialists, such as a repair shop. Also, for handling, please refer to the instruction manual or video instruction manual of our website and work with great care. In addition, about breakage of the musical instrument when replacing, an accident, etc., it shall be considered as self-responsibility, and our company shall not take any responsibility.