The Metro 5MPRXGSA is a durable stainless steel cart-washable stem caster designed for heavy-duty use. Featuring a rigid construction and a flat polyurethane wheel tread, this caster supports a weight capacity of up to 300 lbs. It is NSF certified, making it suitable for use with all MetroMax posts and shelves, ensuring reliability and performance in various environments. Ideal for commercial kitchens and storage areas, this caster provides smooth mobility and stability for your carts and shelving units.