Swivel Casters and Wheels Gray Blue Carriage 1 with Brake Caster Wheel 1" Threaded Stem 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. Thanks for stopping. Please visit my slow growing store, read about me, my policies and view other items that may interest you. Also, check out my other casters wheels. **I always have money saving volume discounts on most items** David - thediscountretailer LLC