Rock N Roller Multi-Cart MultiCart 6x3" Ground Glider Low Profile All-Terrain Caster with Brake, Upgrade Caster for R14RT Cart

The custom-designed R-Trac Wide wheels feature low profile no-flat tires, lightweight but strong polymer hubs, low rolling resistance, pneumatic-like cushioning, vastly wider load dispersion over soft terrain and a stunning racing-style look. 6"x3" brake casters are 50% wider than typical casters and can glide over soft terrain. The R6x3CSTR is a replacement caster for the R16RT and can be purchased as an upgrade caster for the R14RT.