This is a Replacement Bungee Cord for Various NordicTrack and Proform Rowers Listed Below.

NordicTrack -
NTEVRW10918.0
NTEVRW10918-CH.0
NTEVRW15920.0
NTEVRW59216.0
NTEVRW59715.0
NTEVRW59715.1
NTRW10121.0
NTRW10121.1
NTRW10121.4
NTRW10121-INT.0
NTRW10121-INT.3
NTRW15121.0
NTRW15121-INT.0
NTRW19147.0
NTRW19147.1
NTRW19147.2
NTRW19147.3
NTRW19147.4
NTRW5914.0
NTRW5914.1
NTRW5914C.0
NTRW59146.0
NTRW59146C.0
NTRW59147.0
NTRW59147.1
NTRW99147.0
NTRW99147.1
NTRW99147.2
NTRW99147.3

Proform - 
PFEVRW41016.0
PFEVRW49715.0
PFEVRW49715.1
PFRW38116.0
PFRW3814.0
PFRW3814.1
PFRW3814.3