Marathon Flat Free tires provide the bounce and load handling characteristics similar to an air-filled tire with the benefit of never going flat.
Eliminate downtime, 8-Inch solid polyurethane flat free tire mounted in a steel rigid caster with 4-Inch x 4.5-Inch mounting bracket. No flat tires have the same bounce, feel, cushioning, and performance as a regular air-filled or pneumatic tire. They are also non-marking and will not be affected by ozone or UV rays. Airless Tires are made of lightweight, solid polyurethane foam and are guaranteed to never go flat.