3" orange single wheel swivel caster w/ mounting plate

What is for sale: 3" orange single wheel swivel caster w/ mounting plate

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These are Orange Single Wheel Swivel Casters with a white core. They are a transparent colorful soft polyvinyl chloride (PVC) tread and white polypropylene (PP) core. They have metal wheel supporters with a loading capacity of approximately 99 pounds. Please email me with any questions. SKA75-O
Approximate Measurements: Mounting Plate; 2-3/8" Square, 1-3/4" Hole Distance - Wheel; 2-7/8" Diameter, 7/8" Width - Overall Length of Caster 3-7/8"