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• All Frame Welded.
• 1600# Wheel Capacity  To Assure Ease Of Travel.
• Soft Urethane Wheels For Quiet Rolling, Even On Uneven Surfaces.
• Two Swivel Casters And Two Fixed Direction Casters.
• Two Locking Casters Both The Axle And The Swivel Function.
• Ball Bearings In The Axle and The Swivel.
• These Will Never Leave a Mark On Any Floor.
• 16-Gauge Cold Rolled Steel Shelves.
• Durable Powder Paint Finish. Many Colors.