her name is helaine knapp, city row founder. okay, it's right here.ing, correct? >> absolutely. the machines are not the tradition alma chiens you think of. we're actually tapping this beautiful water rower that's made of wood and has a water wheel that you actually row against resistance. liz: how does it work? >> so the class is built into intervals on the rower and off. six minutes of rowing and six minutes of mat work doing total-body be, high intensity interval work. back on the rower, back on the mat. liz: why is this better than one hour on the elliptical where i end up drenched? >> i think peek are looking for something better, and people are craving something that's going to be low impact for them but also total body. when you look for something like that, it's very rare. liz: now, these machines cost about $1500. our own benny, the intrepid benny, is mounting one right now, and he's putting his feet into it, and he's -- >> [inaudible] >> liz: yeah, he's strapping in. and you have about 19 per class, eight classes per day, $32 per person, i'm