Slipstick CB680 2 Inch Floor Protecting Rubber Office Chair Caster Wheels (Set of 5) Standard Stem Size – Black/Gray

Amazon.com Price: $12.99 (as of 05/06/2021 21:16 PST- Details) & FREE Shipping.

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Each caster features a standard size 7/16 inch (11mm) diameter x 7/8 inch (22 mm) length stem and easy-rolling 2” (50 mm) twin caster rubber wheels
Eliminates the need for big plastic floor mats over your beautiful floors, these rubber castor wheels protect hardwood, laminate, tile, slate, and all other hard floor surfaces