Impulse sterling is the official supplier for the chinese national weight lifting team the impulse sterling row is a great machine manufactured by impulse fitness the plate loading feature is becoming more and more popular as you are able to add on the exact weight that you want for your training targets warranty of the impulse sterling row main frames life time moving arms 2 years linear bearings springs adjustments 1 years hand grips upholstery pads and rollers all other parts inclu