Office Chairs Ruining Hardwood Floors? Consider the Rollerblade
Amazon.com : The Original Office Chair Caster Wheels Rollerblade Style (Set of 5), Safe for All Floors & Hardwood, Replacement for Desk Floor Mat, Universal Fit : Office Products
SlipStick 3 in. Black Rollerblade Office Chair Caster Wheels (5-Pack) CB690 - The Home Depot
Amazon.com: 2.5 inch IKEA Office Chair Caster Wheel Replacement for Roller-Blade Wheels Heavy Duty Casters for Hardwood Floors Safe (Stem Size10mm x 22mm) (2.5 inch Black, Grey/Black) : Office Products