Metal 28-172S Set of (4) 1" Square Post Shelving Casters with Locking Wheels, 5" Diameter (Raises Height 6")$$Tools & Hardware Other

Krowne Metal's Krowne 1" Square Post Shelving Caster Locking Wheels, 5" Diameter 220lbs per caster load capacity Grease resistant Raises height of equipment 6" Fits AMCO Shelving (set of 4)You may also like Workbench Stepdown Caster, 600 Lbs Casters Wheels Set of 4 Heavy Duty Steel, 2.5" All Steel Construction Urethane Wheels with Screws & Screwdriver$$Tools & Hardware Other.