This Swivel Caster and Wheel, one with brake, with 4" x 1-1/4" wheel Dimension is a great addition to your material handling needs. The 1' x 1/2" threaded stem dimension makes it easy to attach to your unit. This Unit Type product is perfect for business and industrial use, especially on hospital beds, carriages & and toolboxes. The gray & blue color of the Carriage Hospital Bed Caster Wheel adds a touch of professionalism to your equipment. This high-quality Swivel Caster and Wheel is a durable and reliable choice for your needs. The unit quantity is 2.