center. with the turn of a knob the chair converts into a fully functional exercise machine. it gets you from zero to 60 pretty fast. reporter: everything from upper body presses to leg extensions. there are six handles. so it s four stations. and one band for each. and you can do roughly 16 core exercises. reporter: inventor adam ben david says he came up with the idea for a desk gym while he was a philosophy student in college, sitting in front of his computer for hours on end. after the idea started we got a few dumbbells, just kind of had those around the chair, then got an exercise band. it really just started to snowball into the whole system. reporter: the band wraps around a pulley system built into the chair. the user can adjust the tension by raising or lowering the seat. you can get roughly 90 to 100 pounds of we have thicker diameter bands and thinner ones as well. you can really dial it up all the way. reporter: but for deskbound professionals like jason it