4" x 1 1/4" Gray Rubber Crown Tread Wheel - Delrin Bearings RD4x1-1/4D Price:$8.93    Each 4" Diameter 200 lbs. Capacity Delrin Bearings. Size shown in photo is 5" x 1 1/4" with Ball Bearings. Home | Application Tips | Standard Products - Casters and Caster Wheels | Warranty | Summary | Contact Us Casters - Helpful Tips | Special Products - Casters and Caster Wheels | Web Resources | Site Map Photos & graphics are for informational purposes only. Actual product may vary slightly from those shown. Wheel colors may vary unless specified. If wheel color is important, please contact us for current inventory.