Makina amphamvu a F, F88 ndi makina olimbitsa thupi a Dual station, mwachitsanzo, kuphunzitsa Chest & Shoulder Press pamakina amodzi omwewo.Zogwirizira zapawiri zimawonjezera chitonthozo cha ochita masewera olimbitsa thupi komanso kulimbitsa thupi kosiyanasiyana.Izi zimathandizira kulembedwa kwa minofu yambiri komanso kuchita masewera olimbitsa thupi mosiyanasiyana pophunzitsa minofu yomwe imakhudzidwa ndi kayendetsedwe kapamwamba kakukankhira kwa thupi, kuphatikiza minofu ya pectoral ndi triceps.