Item was a perfect replacement for the original walking belt for my NordicTrack. The item came directly from Treadmill Doctor but cost about $30 less via the Walmart site than it was through the Treadmill Doctor site. The belt seems to be of very good quality (time will tell), looks exactly like the original, and included lubricant for the back side of the belt. Now if they had instructions for replacing this particular belt, that would be even better. The video on the Treadmill Doctor website was helpful but didn't include some important steps related to the NordicTrack. TIP - COUNT the number of times you turn each screw when removing the rollers. I didn't and wish I had as it probably would have saved time in getting the new belt aligned and tightened properly. Also, have the heaviest user available when testing the tension on the new belt. I originally tested it for myself but then a heavier family member tried using the treadmill and the belt kept slipping. No big deal, except that I had to do more testing with that person to get the tension right.