Aebor Office Chair Caster Wheels, Set Of 5, Office Chair Wheels Replacement Rubber Chair Casters, 3 Inch Heavy-Duty Computer Desk Caster Wheels - Universal Fit

Specifications: Material: high-grade steel+polyurethane+hard plastic Universal Stem Size: 7/16" (11mm) x 7/8" (22mm) Fits: office chairs sold in the USA with 11mm stems. Tools-Free Installation: 1.Pull off the old chair casters from the chair base, with no need for any tools. 2.Push the stem of your new office chair wheels into the socket, until the stem is firmly anchored. Package Includes: 5*Office Chair Caster Wheels Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!