I-FB Series Pearl Delt / Pec Fly inikeza indlela enethezekile nephumelelayo yokuqeqesha amaqembu emisipha yomzimba aphezulu.I-Pec Fly ingomunye wemishini ethandwa kakhulu ejimini.Ngesu elifanele, linikeza indlela enhle yokusebenza imisipha yesifuba ngezimpukane ze-pec.Ilungele labo abathanda ubulula, isivinini kanye nokusebenziseka kalula okuhlinzekwa umshini.