Alera Complete Wire Shelving Unit with Casters, Four-Shelf, 48" x 18" x 72", Black Anthracite - Walmart.com
Accuflow Systems 5 shelf wire caster cart with 2 swivel and 2 break casters, | Fisher Scientific
Amazon.com: Hlyluoyi Casters for Wire Shelving, Stem Casters Set of 4, 2 inch Caster Wheels 1/4 inch Threaded Stem, Replacement Wheels for Rolling Cart, Shelving Parts Rubber Caster Wheels Fit for 3/4”
EFINE Black 5-Tier Rolling Heavy Duty Metal Wire Storage Shelving Unit Casters 1 in. Pole (30 in. W x 63.7 in. H x 14 in. D) RL33655 - The Home Depot
Casters for Stainless Steel Wire Shelving Units - Set of 4 H-4305 - Uline
5DRPPRG Wire Post Stem Caster Wheel for Metro Shelves, red on gray polyurethane wheel