Redge Portable All-in-one Gym System is a high quality retractable bodybuilding bar fitted with durable adjustable resistance bands attached at both ends. Each band provides 30Lb of resistance All bands are made of Highest Quality Durable Anti Break resilient elastic 8 Bands provide a total of 240Lb of resistance 4 Bands provide a total of 120Lb of resistance It weighs only 3.5Lb and can fit in any backpack or travel pack Length of bar is 40inches (can be split into half) In short, it is a "Portable All-in-one Gym System"