Send the following on WhatsApp
Continue to ChatGRADO ADAPTOR PLUG 3.5 mm TO 6.3 mm https://www.viparts.nl/product/grado-adaptor-plug-3-5-mm-to-6-3-mm/
GRADO ADAPTOR PLUG 3.5 mm TO 6.3 mm https://www.viparts.nl/product/grado-adaptor-plug-3-5-mm-to-6-3-mm/