Amazon.com: 4 All Steel Swivel Plate Caster Wheels Heavy Duty High-gauge Steel Gray (4" METAL SWIVEL CASTER GRAY - No brake) : Industrial & Scientific
6 inch Heavy Duty Caster with Durable Metal Wheel, 2 inch wide
Swivel Caster Wheels for ½" Pipe (4-Pack) — PIPE DECOR
6" x 2" Rigid Caster - Heavy Duty Steel Wheel - Brake - caster wheel distributing company, heavy equipment, caster wheels online
6 Inch Steel Caster Wheels, Heavy Duty Iron Swivel Casters - YTCASTER
Set of 4 All Steel Swivel Plate Caster Wheels with Brakes Locking - Heavy Duty High-Gauge Steel Gray Iron Metal Wheels (3" Combo) - CasterHQ Brand: Amazon.com: Industrial & Scientific
Metal Ball Caster Wheel
Hamilton Champion Cast Iron Metal Wheel Swivel Caster 10" x 3" (2600 LBS Cap) - LINCO CASTERS & INDUSTRIAL SUPPLY
Vintage Caster Wheels White Caster Wheels for Furniture Wheels - Etsy Hong Kong
Everbilt 3 in. Gray Cast Iron Swivel Plate Caster with 300 lbs. Load Rating 4035345EB - The Home Depot
4-Inch Heavy Duty Steel Cast Iron Caster Wheels (Pack of 4) - 2800 lbs – Essentials Hero