I-Fusion Series (Standard) Back Extension inomklamo ongena kuwo ngamarola aguquguqukayo angemuva, okuvumela ovocavoca umzimba ukuthi akhethe ngokukhululekile uhla lokunyakaza. I-waist pad enwetshiwe inikeza ukunethezeka nokusekela okuhle kakhulu kulo lonke uhla lokunyakaza. Yonke idivayisi iphinde izuze izinzuzo ze-Fusion Series (Okuvamile), isimiso se-lever esilula, isipiliyoni esihle kakhulu sezemidlalo.