The Metro HDC5BB Super Erecta® Stem Caster features a 4-inch diameter design, ideal for smooth mobility and stability. Its black nylon housing is durable and resistant to wear, while the non-marking polymer tread ensures surfaces remain unscathed. Equipped with donut bumpers, this caster provides added protection against impacts. Designed to fit UP posts, it supports a weight capacity of 225 lbs, making it suitable for various applications in commercial settings. Enjoy effortless maneuverability and reliable performance with this high-quality caster.