swivel wheels - $2 (island lake)

I have 15 brand new 2-1/2" rubberized thermoplastic swivel casters.
I bought them for a project and never used them.
They have a 1/4-20 threaded rod with nut and washer on each one of them.
They are $5 each at the home centers.
I'm selling mine for $2 each or all 15 for $20 CASH only.
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