Amazon.com: Office Chair Caster Wheels 2.5 Inch, Roller Blade Wheels Replacement Rubber Chair Casters for Hardwood Floors and Carpet, Set of 5 (Chrome Bracket/Grey/Clear) : Office Products
Amazon.com: 6 Inch - 6" X 2" Industrial Casters - 2 Fixed and 2 Swivel Caster Wheels with Brakes - Cast Iron Plate Casters Set of 4 Heavy Duty - 3500 lb Capacity - Foghorn Construction : Industrial & Scientific
5 in. Locking Caster Wheel for Baker Style Rolling Scaffold H.D. Hard Rubber 1" shank with safety pins (4 Pack) - Walmart.com
Ground Glider Caster with Brake 6" x 3" (2-Pack for R14G & R16RT)
Heavy Duty 3" 4" 5" Inch Caster Wheels Swivel Plate Polyurethane Wheels pack – ASA College: Florida
Standard Polyolefin Caster - Swivel, 4 x 1 1/4" H-5535S - Uline