Chrome Finish, Neoprene Wheels, and Precision Ball Bearings, these casters Perfect for use on office chairs, task chairs, small carts, and other furniture. Designed originally for use as hospital chair casters, as they are quiet, floor protective, and have a clean look; they are now available to all. These casters are great on hardwood, vinyl, tile, concrete, and some carpets. You won't need a chair mat with these casters.

Below is specs of the 2 size of soft rubber chair casters.Welcome send me inquiry.

Wheel Size	Height	Plate	Mount	Bolt Hole	Thread Stem	Grip Ring	Load
Ø50x25.4	75	32x60.3	20.5x32/48	Ø10	3/8”-16x1”	11.1x22.6	57kg
Ø75x25.4	104	63.5x92	45x71/78	Ø11	3/8”-16x1”	11.1x22.6	80kg

Neoprene furniture wheels with grip ring and hollow king pin Neoprene chair wheels with Plate and threaded stem