I-Fusion Pro Series Back Extension iqinile futhi kulula ukuyisebenzisa ehlinzeka ngesixazululo esihle kakhulu sokuqeqeshwa kwesisindo samahhala. Ama-hip pads alungisekayo afanele abasebenzisi bosayizi abahlukene. Inkundla yezinyawo ezingasheleli enokubanjwa kwenkonyane nge-roller inikeza ukuma okunethezekile, futhi indiza ene-angle isiza umsebenzisi ukuthi enze imisipha yangemuva isebenze ngempumelelo.