I'm not 100% sure but I think the walking board itself is plastic (it may be reinforced). It aids in being low friction for the belt and flexes nicely to offer a gentle cushion. It feels to me as good as the one at the gym. The support rails seem like aluminum but they are extruded in a complete rectangle shape for strength and have some kind of coating. It's heavy enough to be steel though, or so it seems. I'm well over 200 pounds and have had no issues.
answered 4 years, 10 months ago
- Philadelphia, PA