NordicTrack APEX 6100xi is an early 2000s, fairly substantial treadmill. It has a 0–12% incline and 0.5–10 mph speed range. Folds up for space saving storage. Works great. Not used much lately. I do most my running outside. Only annoyance is the little plastic shelf that holds a book or phone broke off. I put mine in the water bottle holder. See photo.