Rollerblade Style Replacement Wheels For Office Chairs.  These Soft Wheel Casters were designed for use as replacement casters on office chairs. These casters are excellent for use for all types of hard floors including hardwood or laminate floors. They also work great on tile, linoleum and other smooth hard surfaces. By incorporating a ball bearing axle and a double ball bearing raceway, this design insures the smoothest ride possible. The sealed Ball Bearing on the axle insures that the wheels will turn regardless of the debris or hair on the axle. The FORKS and CORE is in BLACK color covered with Clear PU rubberized material.

Weight load capacity: 130 lb each.  
Wheel Diameter: 75mm (3" approx.)
Wheel Width: 7/8"
Stem Length: 7/8"
Stem Diameter: 7/16" Grip Ring Type