• Replacement 2.2" carpet casters
• Hooded double/twin wheel design with 2.2" wheels
• "Barrel" top style
• 7/16" x 7/8" (11mm x 22mm) wire grip ring mounting stem
• Original casters can be removed by pulling off, and these new casters can be inserted into the existing caster socket holes in the chair base.  No special tools are required
• Black
• Set of 5 casters