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
Amazon.com: Heavy Duty Replacement Office Chair Caster Wheels 500 lbs Chair Capacity- (Set of 5) - S5490-5 : Office Products
SlipStick 2 in. Floor-Protecting Rubber Office Chair Caster Wheel (5-Pack) CB680 - The Home Depot
Rollerblade Office Chair Replacement Caster Wheels for Hard Floors 5 Pack
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