Footmaster’s GDN-60F is the perfect solution for uneven floors and to prevent tire flattening. This leveling caster allows you to adjust the height of each point of ground contact, which gives you a level load no matter how uneven the surface.   When loads are stationary for extended periods of time, weight is usually placed on only one of side of the wheel, causing it to flatten over time.  The GDN-60F prevents tire flattening by placing the weight of the load on the leveling mechanism instead of the wheel.  An available ratchet option makes adjusting the leveler easy.