Heavy Duty Strength: Our 8 inch castor wheels sets 4 built for industrial use, our caster wheels boast premium steel caster yokes and pre-drilled plate mounts, along with precision ball bearings, ensuring proper weight distribution and a remarkable weight capacity of 600 -1000 lbs per casters wheels. Easy To Use: Our package includes (2) 8" swivel caster wheels,(2) 8" fixed caster wheels heavy duty,Very convenience for Installation.Ensuring versatility for various applications. Durable Construction: Featuring solid molded rubber tires with knobby tread on red rimmed steel hubs, our outdoor caster wheels casters set of 4 offer resilience and stability on any surface. Enhanced Maneuverability of heavy duty caster wheels: With a high-performance swivel mechanism and grease fitting, enjoy effortless 360 pivoting for smooth transportation of heavy loads with minimal resistance. Universal Compatibility: Designed to enhance work efficiency, our caster wheels are suitable for a variety of indoor and outdoor carts, wagons, dollies, and more, delivering smooth rolling performance across any terrain.