The Shepherd Hardware Medium Duty Ball Bearing Casters measure 1-5/8-Inch and feature a double race rubber wheel-stem. These casters are the industry standard for wood base office furniture. Double bearing raceways allow for instant swiveling and black soft rubber wheels provide smooth, silent operation on hard wood floors and chair mats. They come two per package.

1-5/8 inch diameter soft black rubber wheel with double ball bearing swivel, friction stem mount and copper oxide finish
5/16 inch friction stem is 1-1/2 inches long for quick and secure installation
70-lb load capacity
Soft rubber wheels and double ball bearing construction for instant swiveling and near-silent operation on hard surface floors
A great general-duty choice for home or office use and the standard for wood-base office furniture, equipment, and displays