Rock N Roller Multi-Cart 8x3" Ground Glider Wide Caster with Brake, 2-Pack

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. 8"x3" brake casters are 50% wider than typical casters and can glide over soft terrain.The RCSTR8X3 is a replacement caster for the R18RT and can be purchased as an upgrade caster for the R12RT.