Revamp your storage with the RW Base 4-Tier NSF Green Epoxy Shelving Unit. These steel storage shelves are strong, each capable of supporting up to 450 pounds. The green epoxy coating provides corrosion resistance, ideal for humid environments like walk-in coolers or freezers. Designed with vertical ribs, these NSF-certified wire shelves ensure stability to avoid tipping. The vented design of these shelving units enhances air circulation and reduces dust buildup, keeping items fresh. This kit comes with posts and 32 split sleeves allow for adjustable shelf heights. The kit also includes casters for easy mobility. Each shelf is 18 inches wide, 72 inches long, and 1.5 inches high, with posts that are 74 inches tall. The casters measure 5 inches in diameter. Each order includes 4 shelves, 4 posts, and 4 casters.